Which Navy rank is the highest among the following options?

The rank of Admiral is the highest among the options provided. In the Navy, ranks are structured in a hierarchical order, with Admiral being a four-star officer rank. It sits at the top of the officer ranks, above Vice Admiral, which is a three-star rank. Captain is a lower rank, typically a commanding officer of a ship or a naval air station, and Rear Admiral is below Vice Admiral in rank, being a two-star position. The progression of these ranks illustrates a clear hierarchy, with Admiral representing the peak of command authority and responsibility within the Navy. Understanding this structure is crucial for comprehending naval operations and leadership dynamics.