What is expected when a cadet salutes an officer?

When a cadet salutes an officer, the expectation is that the cadet will hold the salute until the officer acknowledges it by returning the salute or indicating it's no longer necessary. This act is a sign of respect and adherence to military customs. Waiting for the officer to drop their salute signifies recognition of the officer's rank and position, reinforcing the cadet's understanding of military protocol.

The other options do not align with military customs. Nodding the head or maintaining eye contact may be polite gestures but do not replace the formal salute. Backing away slowly is not relevant in this context, as it does not maintain the importance or purpose of the salute. The focus should be on the salute itself and the proper etiquette associated with it, which centers around acknowledging the officer's presence and rank with an appropriate salute until the officer initiates the departure from that action.