What role does the flight engineer play in the MH-60S crew?

The flight engineer in the MH-60S crew plays a crucial role in assisting the pilot with various aircraft systems. This includes monitoring and managing systems related to propulsion, fuel, electrical, and environmental controls, ensuring that everything is functioning correctly throughout the flight. By supporting the pilot, the flight engineer contributes to the safe and efficient operation of the aircraft, allowing the pilot to focus on navigation and overall flight management.

Other roles, such as handling external communications, managing ground support systems, or being solely responsible for crew safety and training, are typically designated to other members of the crew or specific roles within the aviation team. The flight engineer's responsibilities center on directly supporting the flight operations, thus making option C the most accurate reflection of their role.