Who reports directly to the Secretary of the Navy?

The correct choice indicates that the Chief of Naval Operations (CNO) and the Commandant of the Marine Corps (CMC) are the two senior leaders who report directly to the Secretary of the Navy. This relationship is a key part of the organizational structure of the United States Navy and Marine Corps, where the Secretary of the Navy oversees both services. The CNO is the highest-ranking officer in the Navy and is responsible for the command, utilization of resources, and operating efficiency of the naval forces. The CMC, while leading the Marine Corps, also plays a critical role in military operations and policies, particularly in coordinated efforts with the Navy.

This direct reporting relationship ensures streamlined communication and strategic alignment between the Department of the Navy's top leaders and the Secretary, enhancing operational effectiveness and leadership cohesion within the naval services. Other positions mentioned, such as the Chief of Staff and various ranks of admirals, do not have this direct reporting line to the Secretary and thus do not fulfill this particular organizational role.