What are the main components of the electrical system in the MH-60S?

The correct choice highlights the essential parts of the electrical system in the MH-60S. Batteries, generators, distribution panels, and circuit breakers work together to ensure a reliable supply of electrical power throughout the aircraft.

Batteries provide backup power and support functions when generators are offline. Generators are responsible for producing electrical energy during flight, while distribution panels manage the allocation of this energy to various systems and components, ensuring that each part receives the necessary power to operate effectively. Circuit breakers protect the electrical system by preventing overloads and maintaining safety.

Other options, while related to various systems in the aircraft, do not encompass the primary components of the electrical system. Air conditioning units are part of the environmental control system; radar and sonar systems belong to the aircraft's sensor suite; and navigation instruments, though reliant on electricity, do not represent the broader spectrum of the electrical system itself. This makes the choice clearly suited for describing the core elements that support the aircraft's electrical infrastructure.