An air traffic controller is primarily responsible for: A. Managing landings and takeoffs to avoid collisions.

B. Ensuring air crews and pilots board their vehicles on time.

C. Monitoring air space for hostile vehicles.

D. Efficiently organizing storage space in a hangar.

The primary responsibility of air traffic controllers is the separation of aircraft. They control traffic in and around airports and in the terminal and en route airspace in between. Controllers speak directly with pilots, notifying them of traffic or weather in there vicinity.

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