Which of the following organs in the body controls the body's balance?

Correct answer: (d) More than one of the above

Explanation

Balance is kept by two parts: the inner ear, whose semicircular canals and vestibule (macula and crista) sense the position and movement of the head, and the cerebellum, the part of the hindbrain that coordinates posture and movement.

Both are listed, so the answer is "More than one of the above".