Which position in the AC terminal option is responsible for issuing control instructions to aircraft and vehicles operating on the airport movement area?

The role of issuing control instructions to aircraft and vehicles operating on the airport movement area is primarily handled by ground control. Ground control is responsible for managing all surface operations on the airport, including directing aircraft and vehicles on taxiways and runways. This position ensures safe and efficient movement on the ground, coordinating the flow of traffic to prevent conflicts and enhancing safety.

Ground controllers provide critical instructions to pilots and vehicle operators, such as taxi clearances and guidance to the runway hold positions. They communicate with pilots while the aircraft are on the ground, handling the complex interactions of multiple moving parts in a busy airport environment.

In contrast, tower control focuses primarily on the active runways, managing takeoffs and landings. Clearance delivery deals with giving pilots their flight plans and clearances for departure but does not operate on the movement area of the airport itself. Flight information provides general information and updates but does not issue control instructions. Therefore, ground control is the clear choice for this responsibility.