Which of the following statements regarding hearing is TRUE?
A. Low-pitched tones selectively cause vibration of the basilar membrane at a point closer to the oval window than high-pitched tones do.
B. Sound is amplified as it is conducted from the oval window to the tympanic membrane.
C. The pitch of sounds is conveyed by the amplitude of the vibration of the oval window.
D. The loudness of a sound is conveyed by the frequency of action potentials generated in the cochlear nerve.
Answer: D
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