A risk treatment plan typically includes the following elements2:
Risk description: A brief summary of the risk, its causes, and its consequences.
Risk owner: The person or entity who is responsible for managing the risk and implementing the risk treatment plan.
Risk response: The strategy or method chosen to deal with the risk, such as avoid, reduce, transfer, or accept.
Risk actions: The specific tasks or steps that need to be performed to execute the risk response.
Risk resources: The human, financial, technical, or other resources that are required or available to support the risk actions.
Risk timeline: The schedule or deadline for completing the risk actions and achieving the desired risk level.
By recommending a risk treatment plan, the risk practitioner can help the organization to:
Analyze and prioritize the vulnerabilities detected on the systems, and determine their impact and likelihood.
Evaluate and compare the possible risk responses, and select the most suitable and feasible one for each vulnerability.
Define and assign the roles and responsibilities for the risk treatment process, and ensure the accountability and collaboration of the stakeholders.
Monitor and measure the progress and effectiveness of the risk treatment process, and report the results and outcomes to the management.
The other options are not the best course of action, because:
Recommending the business change the application is not a realistic or practical option, as it may be costly, time-consuming, or technically challenging to modify the application to make it compatible with the updated servers. It may also create other issues or risks, such as compatibility problems with other systems, performance degradation, or user dissatisfaction.
Including the risk in the next quarterly update to management is not a proactive or timely option, as it may delay or defer the risk treatment process and increase the exposure or vulnerability of the systems. It may also indicate a lack of urgency or importance of the risk, and undermine the credibility or trust of the management.
Implementing compensating controls is not a sufficient or comprehensive option, as it may not address the root cause or the source of the risk. Compensating controls are alternative or additionalcontrols that are implemented when the primary or preferred controls are not feasible or effective3. They may reduce the impact or likelihood of the risk, but they may not eliminate or resolve the risk.
References =
Risk Treatment Plan - CIO Wiki
Risk Treatment Plan Template - ISACA
Compensating Control - CIO Wiki

A risk heat map is the best tool to enable senior management to compare the ratings of risk scenarios, as it provides a visual representation of the risk level and priority of each risk scenario, based on the combination of the likelihood and impact ratings, and the risk tolerance and appetite of the organization. Key risk indicators (KRIs), key performance indicators (KPIs), and control self-assessment (CSA) are not the best tools, as they are more related to the measurement, monitoring, or testing of the risk scenarios, respectively, rather than the comparison of the risk scenarios. References = CRISC Review Manual, 7th Edition, page 110.

The best way to determine whether system settings are in alignment with control baselines is to perform configuration validation. Configuration validation is the process of verifying that the system settings and parameters are consistent with the predefined standards and requirements, and that they reflect the current and desired state of the system. Configuration validation helps to ensure that the system is configured correctly and securely, and that it complies with the relevant policies, regulations, and best practices. Configuration validation also helps to identify and correct any deviations or errors in the system settings, and to prevent or mitigate any potential risks or issues. The other options are not as effective as configuration validation, although they may provide some input or information for the system alignment. Control attestation, penetration testing, and internal audit review are all activities that can help to assess or evaluate the system alignment, but they do not necessarily determine or validate the system settings. References = Risk and Information Systems Control Study Manual, Chapter 3, Section 3.2.1, page 3-11.

Residual risk is the amount of risk that remains after the implementation of risk mitigation controls. If the fraud detection controls in an online payment system do not perform as expected, the residual risk will most likely change as a result, because the controls will not be able to reduce the impact or likelihood of the fraud risk as intended. The residual risk may increase or decrease depending on the performance of the controls, and the risk practitioner may need to adjust the risk response strategy accordingly. The other options are not as likely to change as the residual risk, because they are not directly affected by the performance of the controls, but rather depend on other factors, such as the source of the risk, the organization's objectives, or the external environment, as explained below:
A: Impact is the extent or magnitude of the harm or loss caused by a risk. The impact of the fraud risk in an online payment system may not change as a result of the controls' performance, becausethe impact is determined by the potential consequences of the fraud, such as financial losses, reputational damage, or legal liabilities, which are independent of the controls.
C: Inherent risk is the amount of risk that exists before the implementation of any risk mitigation controls. The inherent risk of the fraud risk in an online payment system may not change as a result of the controls' performance, because the inherent risk is determined by the nature and characteristics of the risk, such as the type, source, or frequency of the fraud, which are independent of the controls.
D: Risk appetite is the amount and type of risk that an organization is willing to accept in pursuit of its objectives. The risk appetite of the organization may not change as a result of the controls' performance, because the risk appetite is determined by the organization's strategy, culture, and values, which are independent of the controls. References = Risk and Information Systems Control Study Manual, Chapter 2, Section 2.1.1, page 32. What is Residual Risk? Definition, Examples, and More, Residual Risk: Definition, Formula & Management - Video & Lesson Transcript | Study.com, Residual Risk: What It Is and How to Manage It

According to the CRISC Review Manual (Digital Version), a contract associated with a cloud service provider must include ownership of responsibilities, as this defines the roles and obligations of both the cloud provider and the customer in relation to the cloud services. The contract should specify who is responsible for:
* Service delivery and performance
* Data security and privacy
* Compliance with regulations and standards
* Incident management and reporting
* Business continuity and disaster recovery
* Change management and configuration control
* Intellectual property rights and licensing
* Termination and data egress
The contract should also include service level agreements (SLAs) that measure and monitor the quality and availability of the cloud services, as well as remedies and penalties for non-compliance. The contract should also address pricing and payment terms, dispute resolution mechanisms, and liability and indemnification clauses.
References = CRISC Review Manual (Digital Version), Chapter 3: IT Risk Response, Section 3.3: Risk Response Options, pp. 173-1741