During World War II, how many numbered fleets were responsible for operations in the Atlantic Ocean?

During World War II, operations in the Atlantic Ocean were overseen by three numbered fleets, which were important for various strategic military operations. The U.S. Navy established the Atlantic Fleet, which was split into several commands to better manage the extensive operations across the ocean. These included the 1st Fleet, which primarily focused on operations in the North Atlantic, and the 2nd Fleet, responsible for operations along the eastern coast of the United States and in the Caribbean Sea. The 3rd Fleet was operational in the Pacific but played a role in coordinating efforts that impacted the Atlantic. This multi-fleet approach allowed for greater flexibility and coordination in responding to threats, conducting naval engagements, and supporting Allied forces during the war.

The context of the other options highlights the complexity of naval operations during such a global conflict. While one fleet would not have been sufficient to cover the extensive and varied operational demands of the Atlantic, having four would imply a broader division of responsibilities that did not exist in practice. The correct recognition of three fleets reflects the organizational structure that was actually implemented in response to wartime conditions.