Final answer:
Raters shall retain the annual rating for 2 years. The correct answer is option C.
Step-by-step explanation:
The correct answer is 2 years.
Raters shall retain the annual rating for a period of two years. This means that the rating will be kept on record for that duration. For example, if a rater completes an annual rating for an employee in January 2021, the rating will be retained until January 2023.
It's advisable to refer to the specific policies and guidelines of the organization or institution in question to determine the accurate duration for retaining annual ratings. Organizational policies may vary, and they could specify different retention periods based on the nature of the ratings and the purpose of retention.