Which of the following is an example of an optional NCOER?

The correct answer is related to the concept of optional NCOERs (Noncommissioned Officer Evaluation Reports), which are not mandatory in all situations but may still be submitted at the discretion of the rating officials. The "Complete the Record" NCOER is an example of this; it is often used to evaluate an NCO who is being considered for promotion or other significant opportunities and is typically required to ensure a complete assessment of the NCO's performance.

In contrast, the Annual NCOER is mandatory and is required for every rated NCO, reflecting their performance over the previous year. The Change of Rater NCOER is also a required evaluation that occurs whenever there is a change in supervision. Similarly, the Relief for Cause NCOER is required when an NCO is relieved of their responsibilities for reasons that typically reflect significant performance deficiencies. Therefore, the options that involve mandatory evaluations highlight situational requirements in the evaluation process, while the "Complete the Record" provides flexibility based on the needs of the organization or the individual’s career progression.