Which of the following positions is directly responsible for the Navy's operations?

The Chief of Naval Operations (CNO) is the highest-ranking officer in the U.S. Navy and serves as the principal military advisor to the Secretary of the Navy. This position is directly responsible for the operations of the entire Navy, including the development and implementation of strategies, policies, and operational readiness. The CNO oversees the day-to-day functioning of naval forces, ensuring that naval operations align with national policy and military strategy. This role includes the authority to direct naval operations and the management of naval resources, which places the CNO at the core of responsibility for Navy operations.

The Secretary of the Navy holds an important position as the civilian leader of the Navy, but their focus is more on policy and administration rather than direct operational command. The Vice President does not have command authority over military operations but serves primarily in a political role. The Fleet Commander directs specific fleets or task forces but operates under the broader directives established by the CNO, which is why the CNO is ultimately the most appropriate choice for the responsibility of Navy operations.