What distinguishes the MH-60S from the MH-60R?

• A. The Sierra focuses on logistics and SAR, while the Romeo specializes in ASW
• B. The Sierra is a fixed-wing aircraft
• C. The Romeo can perform mine countermeasures
• D. The Sierra is unmanned

Answer: (A)

The main idea here is understanding how the two MH-60 variants are used differently. The MH-60S Sierra is configured for logistics support, vertical replenishment, cargo transport, and search-and-rescue missions, including medical evacuation. The MH-60R Romeo is built around anti-submarine warfare with specialized sensors and weapons for sub-hunting, plus surface reconnaissance and related missions. So describing the Sierra as focusing on logistics and SAR while the Romeo specializes in ASW captures their primary roles.

Notes on the other statements: the Sierra is not a fixed-wing aircraft—it's a helicopter. The Romeo's primary mission is ASW, not mine countermeasures. And the Sierra is not unmanned; it is a manned helicopter.