Which of the following statements is correct regarding non-movement areas?

Non-movement areas at an airport refer to regions where aircraft can maneuver but are not actively controlled by air traffic control (ATC). This includes areas such as taxiways that have been designated as not requiring ATC clearance for operation. One of the primary functions of non-movement areas is indeed to facilitate operational activities such as fueling and parking of aircraft.

The primary reason why choice C is correct is that non-movement areas are specifically designed for routine operations like parking, fueling, or maintenance that do not require direct instructions from ATC. In these areas, aircraft can independently maneuver in accordance with local airport regulations, making them appropriate for activities that support aircraft operations.

Understanding the nature of non-movement areas helps clarify why the other statements do not apply. Non-movement areas do not require a flight plan, nor are they under ATC control. Furthermore, hand signals are not the only method of communication permitted in these zones, as pilots have a wider range of communication options available when operating in non-movement areas, including standard radio communications when appropriate.