Which of the following best describes the role of the Chief of Naval Operations?

The Chief of Naval Operations (CNO) plays a crucial role within the Navy, primarily functioning as the senior military officer in charge of overseeing the administration and operations of the Navy. The correct answer reflects the CNO's responsibility to ensure that Navy Regulations are modernized and relevant to current challenges and standards. This includes adapting rules and policies to align with contemporary operational needs, technological advancements, and evolving warfare strategies.

By ensuring that Navy Regulations meet contemporary standards, the CNO aids in maintaining operational effectiveness and readiness. This responsibility extends beyond mere enforcement or routine operations; it involves strategic foresight and leadership to guide the Navy in a dynamic military environment.

The other options describe duties that do not encapsulate the broader strategic and regulatory oversight functions of the CNO. Day-to-day operations and specific fleet management fall under different levels of command and are executed by subordinate officers. While maintaining logistics support is vital, it tends to be a focused area managed by other specialized commands rather than the overarching responsibility of the CNO.