Which rank corresponds to the Navy O-4 classification?

The rank that corresponds to the Navy O-4 classification is Lieutenant Commander. In the Navy's rank structure, the O-4 pay grade is classified as Lieutenant Commander, which falls between Lieutenant (O-3) and Commander (O-5). This rank typically involves responsibilities such as commanding a division or department within a ship or shore installation and often serves as the first level of command for officers who are moving up in their careers.

Understanding the hierarchy of naval ranks is essential, as each rank carries specific roles and expectations. The ranks listed in the other options represent different pay grades within the Navy's structure. Captain is an O-6, Rear Admiral is an O-7, and Fleet Admiral is an O-10, showing that Lieutenant Commander is correctly positioned within the O-4 classification for officers.