Which of the following best describes the Navy's primary Atlantic role during World War II?

• A. Countering German U-boats and convoying troops and equipment to Europe
• B. Countering German U-boats
• C. Convoying troops and equipment to Europe
• D. Defending the U.S. coastline

Answer: (C)

The main idea being tested is the Navy’s primary objective in the Atlantic: ensuring the safe transport of forces and materiel to Europe. That central task was carried out through the convoy system—protecting ships carrying troops and equipment and delivering them to force concentrations in Europe. Countering U-boats is the critical means by which this goal is achieved, but the overarching purpose is to move those troops and gear across the ocean. So the best description is convoying troops and equipment to Europe, because it focuses on the essential outcome of Atlantic operations. The other options describe important aspects (like anti-submarine work) or narrower duties (defending the U.S. coastline) but don’t capture the primary mission of delivering forces and matériel across the Atlantic as clearly.