During World War I, what proportion of the Navy's ships were assigned to the Atlantic Fleet?

The correct answer is that all of the Navy's ships were assigned to the Atlantic Fleet during World War I. This reflects the strategic priorities of the United States at the time, as the Atlantic Theater was the primary area of operations for the U.S. Navy during the conflict. The Atlantic Fleet was essential for maintaining sea lines of communication and conducting operations against German U-boats, which posed a significant threat to Allied shipping. All available ships were focused on this critical front to ensure the support of Allied forces and protect vital maritime interests.

Other options suggest varying degrees of ship allocation, but in the context of World War I, the entire Navy's effort was concentrated in the Atlantic to respond to the immediate threats faced in that region. This strategic emphasis on the Atlantic Fleet underscores the importance of naval power in the overall war effort during that period.