What was the designation of the U.S. Navy's role during the invasion of Normandy?

The United States Navy's role during the invasion of Normandy, known as D-Day, was officially designated as Operation Neptune. This operation encompassed the naval aspects of the larger operation known as Operation Overlord, which was the code name for the overall Allied invasion of German-occupied Western Europe. Admiral Ernest King was the Chief of Naval Operations and Admiral Kirk was specifically tasked with commanding the naval forces responsible for the landing, which included the transport of troops, naval gunfire support, and the protection of the invasion fleet.

Operation Neptune involved complex planning and execution, reflecting the significant coordination required among the naval, air, and ground forces to ensure the success of the landings on June 6, 1944. The strategic and tactical decisions made during Operation Neptune were critical to the overall success of the Allied campaign in Europe.

In contrast, the other options include fictitious or incorrect names and figures that aren't recognized in the historical context of the Normandy invasion.