Which mission modification primarily serves the role of aerial refueling?

The mission modification that primarily serves the role of aerial refueling is identified as Mission Mod K. This modification specifically equips aircraft with the necessary capabilities to refuel other aircraft in flight, enhancing the operational reach and flexibility of the fleet.

Aerial refueling allows for extended flight durations without the need to land for fuel, which is crucial in various military operations. The setup typically includes specific equipment such as refueling boom or hose-and-drogue systems, designed to transfer fuel while maintaining a stable flight profile.

Other mission modifications, while they may serve different operational roles, do not focus on refueling capabilities. Understanding these distinctions is essential for recognizing the unique functions that each mission modification provides to support naval operations effectively.