If a report to the Coxswain is not acknowledged, it should be ____________.

When a report to the Coxswain is not acknowledged, it is crucial to repeat it. This ensures that the information is conveyed effectively and that the Coxswain is aware of the situation or message being communicated. Repetition is an essential communication practice in maritime operations, where clear and immediate responses can be critical for safety and effectiveness.

In a busy or noisy environment, it's possible that the initial communication was not heard or understood. By repeating the report, you enhance the likelihood of it being acknowledged and acted upon. This is particularly important in high-stakes scenarios where decisions must be made based on accurate and timely information.

Other options, such as ignoring the lack of acknowledgement or revising the message without attempting to ensure it is heard again, do not contribute to effective communication. Not receiving an acknowledgment does not imply that the information is no longer needed; thus, expanding on a report without confirmation could lead to confusion or misunderstanding.