By What Means Do We Perceive the Pitch of a High-Frequency

Multiple Choice

By what means do we perceive the pitch of a high-frequency sound (such as 4000 Hz) ?​

A) The number of hair cells responding is proportional to the sound frequency.
B) ​The sound wave excites a particular location on the basilar membrane.
C) ​Each hair cell produces an impulse for each sound wave.
D) ​Each sound wave excites a group, or volley, of hair cells.