Which statement best describes the general characteristics of airspace classes A through G?

Which statement best describes the general characteristics of airspace classes A through G?

• A. Class A through E are controlled airspace requiring clearances/communications; Class G is uncontrolled.
• B. Class B and C are uncontrolled; others controlled.
• C. All classes are controlled.
• D. Class D is uncontrolled and others controlled.

Answer: (A)