How Do We Perceive the Pitch of Sounds

How do we perceive the pitch of sounds?

A) The tympanic membrane vibrates more strongly at high frequencies.
B) The hammer, anvil, and stirrup vibrate at different speeds.
C) Different parts of the basilar membrane vibrate in response to different frequencies of sound.
D) Rods vibrate in response to high- frequency sounds and cones respond to low- frequency sounds.
E) The pinna swivels in different directions in response to sounds of different frequency.