Final answer:
The Chief of Naval Operations acts as a primary advisor to the President of the United States on naval matters.
Step-by-step explanation:
The Chief of Naval Operations (CNO) is a primary advisor to the President of the United States, who is also the Commander in Chief of the Army and Navy. As the highest-ranking officer in the Navy, the CNO is a member of the Joint Chiefs of Staff, which is a body of senior military leaders who advise the President on military matters. The CNO provides opinions and advice on naval matters and may have significant influence on decisions related to the Navy's role in both national defense and foreign policy.