Which of the following is a key responsibility of Administration Officers?

Managing correspondence filing systems is a key responsibility of Administration Officers because they play a vital role in ensuring that all official communications are organized, accessible, and maintained in accordance with Marine Corps policies and regulations. This responsibility is crucial for effective communication within the unit and supports overall operational efficiency. By overseeing filing systems, Administration Officers ensure that correspondence can be easily retrieved when needed, which facilitates timely responses and decision-making.

In contrast, while training personnel in correspondence procedures and evaluating health records may be part of the broader scope of administrative duties, they are not typically the central focus of Administration Officers' responsibilities. Assigning task forces, on the other hand, falls more into the realm of operational leadership rather than administrative duties. Therefore, managing correspondence filing systems stands out as a defining task for those in Administration Officer roles.