What proportion of Navy personnel were reservists after WWII?

The proportion of Navy personnel who were reservists after World War II is indeed well represented by the choice indicating that 4 out of 5 personnel were reservists. This period saw significant changes in the structure of the Navy, especially as the demand for a large active-duty force diminished once the war ended. As a result, many individuals transitioned into the reserve components, which allowed the Navy to maintain a trained force while not requiring the same number of active-duty personnel.

This shift towards a larger reserve component was a strategic response to both the need for a rapid mobilization capability during peacetime and the realities of budget constraints in maintaining a large standing military. The choice representing 4/5 captures the demographic shift within the naval forces accurately during that era.

Understanding this aspect of Navy history provides insight into military organization and resource management in post-war scenarios, emphasizing the importance of reserve forces in national defense strategy. Other options, such as 1/5, 1/3, and 1/2, do not align with historical data regarding the composition of naval forces following World War II and thus do not represent the significant role that reservists played during that time.