The empennage consists of the vertical and horizontal stabilizer.

• A. Fuselage
• B. Empennage
• C. Wing
• D. Engine nacelle

Answer: (B)

The tail assembly of an aircraft, called the empennage, provides stability and control in flight. It includes the vertical stabilizer (fin) and the horizontal stabilizer (tailplane). The vertical stabilizer helps keep the aircraft pointed in the intended direction and houses the rudder to control yaw, while the horizontal stabilizer helps maintain pitch stability and houses the elevator to control pitch. Together, these surfaces balance the aircraft and enable controlled turning and climbing/descending motions. The other parts listed—fuselage (the main body), wing (generates lift), and engine nacelle (houses engines)—are not the tail assembly, so they don’t describe the empennage.