The independence of the internal audit activity is undermined when it is responsible for the company ' s risk management function and its head manager reports to the chief audit executive. This arrangement creates a conflict of interest because the internal audit function should be independent of the operations it audits, including risk management activities. Being responsible for risk management can impair the objectivity of the internal audit activity when auditing risk management processes or controls.
The Institute of Internal Auditors (IIA) - Standards on Independence and Objectivity

In assessing the design of a training program for an organization's ethics program, the most relevant questions would be those that address the content of the training and the feedback mechanism used to foster ethical decision-making. Questions 1 and 4 directly relate to these aspects, examining if the training includes ethical decision-making scenarios and if there is feedback on the thought processes involved, which are critical for effective ethics training.
IIA guidance on auditing ethics programs, focusing on the effectiveness and design of training components.

The most effective way to ensure that a newly formed internal audit activity remains free from undue management influence is to establish the internal audit activity's position within the organization through an audit charter. According to the Institute of Internal Auditors (IIA) standards, the audit charter should define the purpose, authority, and responsibility of the internal audit activity, clearly outlining the scope of internal auditing within the organization. This foundational document formalizes the internal audit function's role and provides a framework that supports its operational independence.
The Institute of Internal Auditors (IIA) - International Standards for the Professional Practice of Internal Auditing.

A control weakness in the oversight of credit sales is evident when the sales department is responsible for determining the credit ratings of customers. This structure can lead to a conflict of interest, as the sales department may be motivated to approve higher credit limits or overlook credit standards to increase sales figures. This undermines the objectivity and effectiveness of the credit approval process, which should ideally be handled by an independent department such as credit control to ensure unbiased evaluation.
Internal control frameworks and auditing standards that emphasize segregation of duties and the independence of critical control activities.

To evaluate the effectiveness of ethical programs, the most appropriate action for the CAE is to use employee surveys to assess whether the ethical programs are achieving desired outcomes (Option C). Surveys provide direct feedback from employees on the effectiveness and impact of ethical programs, offering insights into whether the programs are understood, accepted, and adhered to by the workforce. This approach aligns with the IIA Standards, specifically Standard 2110: Governance, which includes evaluating the design, implementation, and effectiveness of the organization's ethics-related objectives, programs, and activities.
IIA Standards, Standard 2110: Governance
IIA Practice Guide: Evaluating Ethics-related Programs and Activities