What is the role of the APU control panel in the C-5?

The APU control panel's primary function is to start, stop, and monitor the operational parameters of the Auxiliary Power Unit. This includes overseeing indicators and controls that provide information about the APU's performance and health. By allowing operators to manage these critical functions directly, the control panel ensures that the APU can provide the necessary power and functionality needed for ground support and other systems when the aircraft is not in flight. Proper monitoring is essential for maintaining efficiency and safety, making the APU control panel a crucial component of the overall aircraft systems management.

While other options refer to important aircraft systems, they do not align with the specific functions of the APU control panel. The management of cabin pressure, flight navigation systems, and fuel consumption are typically handled by separate systems and control panels dedicated to those tasks.