Refer to the Diagram Below of the Ear

Refer to the diagram below of the ear. Which of the following statements about the diagram is false?

A) Stereocilia embedded in cupulae are found in structure 1.
B) Sound waves in air are converted into fluid waves when the stapes move against the structure covering the opening at position 4.
C) The position and orientation of the head are sensed by structure 1.
D) Otoliths are found on top of a gelatinous substance in the structure indicated by 2.
E) Damage to structure 5 can cause deafness.