Which type of airspace is classified as Class B?

Class B airspace is a type of controlled airspace, which means that pilots must obtain explicit clearance from Air Traffic Control (ATC) before entering this airspace. This specific classification is designed primarily to protect the high-density air traffic that usually operates in and around busy airports. These areas typically extend from the surface up to 10,000 feet and often surround major metropolitan areas, where the volume of aircraft may be significant.

Pilots must ensure they comply with the specific operational requirements set forth by ATC to maintain safety and efficiency in the airspace. The requirement for clearance helps to maintain organized flow and separation of aircraft, minimizing the risk of midair collisions and enhancing overall air traffic management.

Other classifications of airspace serve different purposes. Uncontrolled airspace is found in many rural areas where traffic is lighter, and ATC services are not provided; this does not coincide with Class B. Restricted airspace typically surrounds military bases for safety and security; it is also not applicable to Class B. Finally, special use airspace, designed for specific operational needs such as training, is separate from the classification of Class B airspace. Thus, the role and characteristics of Class B airspace as controlled and requiring ATC clearance make option A the