The Ability to Detect the Direction from Which a Sound

The ability to detect the direction from which a sound originates is determined by

A) lateral inhibition that occurs between the right and left cochlea.
B) lateral excitation occurring between the right and left cochlea.
C) differences in sound intensity as it reaches the right and left cochlea.
D) the time delay between that sound reaching the right and left cochlea.
E) mapping of sound location on the cerebral cortex.