Loudness of High Pitch Sounds Is Determined by _________, Whereas

Loudness of high pitch sounds is determined by _________, whereas loudness of low pitch sounds is determined by _______________.

A) rate of firing; the number of axons active at a time
B) the number of axons active at a time; rate of firing
C) rate of firing; rate of firing
D) the number of axons active at a time; the number of axons active at a time
E) perception; sensation