Final answer:
The control surfaces located on the empennage are the elevator and rudder which control the aircraft's pitch and yaw respectively, making option 1) Elevator and rudder the correct answer.
Step-by-step explanation:
The control surfaces that are usually located on the empennage of an aircraft are the elevator and the rudder. The elevator is a movable control surface attached to the horizontal tail structure (stabilizer), which controls the pitch (up and down movement of the aircraft nose). The rudder is attached to the vertical tail structure (fin) and it controls the yaw (left and right movement of the aircraft nose).
Therefore, the correct answer to the question is option 1) Elevator and rudder. Ailerons and flaps, mentioned in the other options, are typically located on the wings. Ailerons control the roll of the aircraft, and flaps are used to increase the lift during takeoff and landing.