The correct answer to this question is C. Developing KPIs to measure the internal audit team.
Independence is one of the most important qualities of an auditor, and it is essential to ensure that the auditor can carry out his or her responsibilities without any bias or undue influence. When an employee moves from one department to another, there is a potential risk that their previous role may influence their current role and create a conflict of interest. In this case, the employee helped develop the KPIs that are now being used by the organization, and these KPIs are being used to measure the effectiveness of the internal audit team. This means that the auditor may be evaluating their own work and performance, which could create a potential conflict of interest.