Final answer:
The main reason for conducting exit interviews is to understand why an employee has decided to leave, to improve the organization based on feedback.
Step-by-step explanation:
The primary reason for conducting exit interviews is C. To learn reasons why the employee chose to leave the company. Exit interviews are a crucial tool for organizational development and improvement. They provide insights into the working environment, employee satisfaction, and areas where the company may need to make changes to retain staff and improve the workplace culture. In the scenario provided, the Executive Director's interest in creating a "best place" to work aligns with this purpose. However, the negative attitude of the manager towards collecting feedback indicates a barrier to gaining truthful insights from employees, which could undermine the effectiveness of such interviews and the subsequent organizational improvements they are meant to guide.