Why is advisable to avoid consent as a legal basis for an employer to process employee data?

SCENARIO
Please use the following to answer the next question:
Brady is a computer programmer based in New Zealand who has been running his own business for two years. Brady's business provides a low-cost suite of services to customers throughout the European Economic Area (EEA). The services are targeted towards new and aspiring small business owners. Brady's company, called Brady Box, provides web page design services, a Social Networking Service (SNS) and consulting services that help people manage their own online stores.
Unfortunately, Brady has been receiving some complaints. A customer named Anna recently uploaded her plans for a new product onto Brady Box's chat area, which is open to public viewing. Although she realized her mistake two weeks later and removed the document, Anna is holding Brady Box responsible for not noticing the error through regular monitoring of the website. Brady believes he should not be held liable.
Another customer, Felipe, was alarmed to discover that his personal information was transferred to a third- party contractor called Hermes Designs and worries that sensitive information regarding his business plans may be misused. Brady does not believe he violated European privacy rules. He provides a privacy notice to all of his customers explicitly stating that personal data may be transferred to specific third parties in fulfillment of a requested service. Felipe says he read the privacy notice but that it was long and complicated Brady continues to insist that Felipe has no need to be concerned, as he can personally vouch for the integrity of Hermes Designs. In fact, Hermes Designs has taken the initiative to create sample customized banner advertisements for customers like Felipe. Brady is happy to provide a link to the example banner ads, now posted on the Hermes Designs webpage. Hermes Designs plans on following up with direct marketing to these customers.
Brady was surprised when another customer, Serge, expressed his dismay that a quotation by him is being used within a graphic collage on Brady Box's home webpage. The quotation is attributed to Serge by first and last name. Brady, however, was not worried about any sort of litigation. He wrote back to Serge to let him know that he found the quotation within Brady Box's Social Networking Service (SNS), as Serge himself had posted the quotation. In his response, Brady did offer to remove the quotation as a courtesy.
Despite some customer complaints, Brady's business is flourishing. He even supplements his income through online behavioral advertising (OBA) via a third-party ad network with whom he has set clearly defined roles. Brady is pleased that, although some customers are not explicitly aware of the OBA, the advertisements contain useful products and services.
Under the General Data Protection Regulation (GDPR), what is the most likely reason Serge may have grounds to object to the use of his quotation?

In which of the following cases would an organization MOST LIKELY be required to follow both ePrivacy and data protection rules?

SCENARIO
Please use the following to answer the next question:
Building Block Inc. is a multinational company, headquartered in Chicago with offices throughout the United States, Asia, and Europe (including Germany, Italy, France and Portugal). Last year the company was the victim of a phishing attack that resulted in a significant data breach. The executive board, in coordination with the general manager, their Privacy Office and the Information Security team, resolved to adopt additional security measures. These included training awareness programs, a cybersecurity audit, and use of a new software tool called SecurityScan, which scans employees' computers to see if they have software that is no longer being supported by a vendor and therefore not getting security updates. However, this software also provides other features, including the monitoring of employees' computers.
Since these measures would potentially impact employees, Building Block's Privacy Office decided to issue a general notice to all employees indicating that the company will implement a series of initiatives to enhance information security and prevent future data breaches.
After the implementation of these measures, server performance decreased. The general manager instructed the Security team on how to use SecurityScan to monitor employees' computers activity and their location.
During these activities, the Information Security team discovered that one employee from Italy was daily connecting to a video library of movies, and another one from Germany worked remotely without authorization.
The Security team reported these incidents to the Privacy Office and the general manager. In their report, the team concluded that the employee from Italy was the reason why the server performance decreased.
Due to the seriousness of these infringements, the company decided to apply disciplinary measures to both employees, since the security and privacy policy of the company prohibited employees from installing software on the company's computers, and from working remotely without authorization.
To comply with the GDPR, what should Building Block have done as a first step before implementing the SecurityScan measure?

SCENARIO
Please use the following to answer the next Question:
Louis, a long-time customer of Bedrock Insurance, was involved in a minor car accident a few months ago. Although no one was hurt, Louis has been plagued by texts and calls from a company called Accidentable offering to help him recover compensation for personal injury. Louis has heard about insurance companies selling customers' data to third parties, and he's convinced that Accidentable must have gotten his information from Bedrock Insurance.
Louis has also been receiving an increased amount of marketing information from Bedrock, trying to sell him their full range of their insurance policies.
Perturbed by this, Louis has started looking at price comparison sites on the internet and has been shocked to find that other insurers offer much cheaper rates than Bedrock, even though he has been a loyal customer for many years. When his Bedrock policy comes up for renewal, he decides to switch to Zantrum Insurance.
In order to activate his new insurance policy, Louis needs to supply Zantrum with information about his No Claims bonus, his vehicle and his driving history. After researching his rights under the GDPR, he writes to ask Bedrock to transfer his information directly to Zantrum. He also takes this opportunity to ask Bedrock to stop using his personal data for marketing purposes.
Bedrock supplies Louis with a PDF and XML (Extensible Markup Language) versions of his No Claims Certificate, but tells Louis it cannot transfer his data directly to Zantrum as this is not technically feasible. Bedrock also explains that Louis's contract included a provision whereby Louis agreed that his data could be used for marketing purposes; according to Bedrock, it is too late for Louis to change his mind about this. It angers Louis when he recalls the wording of the contract, which was filled with legal jargon and very confusing.
In the meantime, Louis is still receiving unwanted calls from Accidentable Insurance. He writes to Accidentable to ask for the name of the organization that supplied his details to them. He warns Accidentable that he plans to complain to the data protection authority, because he thinks their company has been using his data unlawfully. His letter states that he does not want his data being used by them in any way.
Accidentable's response letter confirms Louis's suspicions. Accidentable is Bedrock Insurance's wholly owned subsidiary, and they received information about Louis's accident from Bedrock shortly after Louis submitted his accident claim. Accidentable assures Louis that there has been no breach of the GDPR, as Louis's contract included, a provision in which he agreed to share his information with Bedrock's affiliates for business purposes.
Louis is disgusted by the way in which he has been treated by Bedrock, and writes to them insisting that all his information be erased from their computer system.
Based on the GDPR's position on the use of personal data for direct marketing purposes, which of the following is true about Louis's rights as a data subject?