The military departments consist of which organizations?

• A. Army, Navy, and Air Force.
• B. Army, Navy (including the Marine Corps and Coast Guard in wartime), and the Air Force (including the Space Force).
• C. Army, Navy, Air Force, and Space Force as four separate departments.
• D. Army and Navy only.

Answer: (B)

This question tests how the United States organizes its military into departments and how the services are grouped under those departments. In current structure, there are three main military departments: the Army, the Navy, and the Air Force. The Marine Corps is not its own department; it operates under the Department of the Navy. The Coast Guard normally sits under the Department of Homeland Security, but can be placed under the Navy during wartime. The Space Force is not a separate department either; it is a part of the Air Force. So the correct framing is the Army, the Navy (which includes the Marine Corps and, in wartime, the Coast Guard), and the Air Force (which includes the Space Force).