What does ATC stand for in aviation regulations?

ATC stands for Air Traffic Control. In the context of aviation regulations, this term refers to the service provided by ground-based controllers who coordinate the movement of aircraft on the ground and through controlled airspace. Their primary responsibilities include ensuring safe distances between aircraft, authorizing takeoffs and landings, and providing pilots with vital information regarding weather, flight paths, and other relevant data.

Air Traffic Control plays a critical role in maintaining the efficiency and safety of air travel, helping to prevent collisions and manage air traffic flow effectively. The other options presented, while they may seem plausible, do not accurately represent the widely recognized function and terminology used in the aviation industry. The clarity and importance associated with the term "Air Traffic Control" solidify its position as the correct answer in this context.