Final answer:
The correct airspeed restriction below 3000 feet within 10 nautical miles of a controlled airport is 200 knots.
Step-by-step explanation:
The question pertains to airspeed restrictions near controlled airports. The correct airspeed restriction below 3000 feet within 10 nautical miles of a controlled airport is 200 knots (Option A). This regulation ensures safety and helps manage air traffic effectively. When planes are in this proximity to an airport, they must adhere to this speed limit to minimize the risk of accidents and coordinate efficiently with air traffic control directives. These regulations play a crucial role in the safe and orderly flow of air traffic in and around controlled airspace.