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The theory of place theory in hearing suggests that different frequencies of sound waves stimulate specific locations along the basilar membrane within the cochlea. According to this theory, the pitch we perceive corresponds to the area of the cochlea that is activated by a particular sound frequency. For instance, higher frequencies displace the membrane closer to the base of the cochlea, while lower frequencies affect areas closer to the apex. This spatial representation of sound frequencies is crucial in understanding how we distinguish between various pitches.

The other options do not accurately represent the place theory. Volume is related to the amplitude of sound waves rather than their frequency, and therefore options related to volume or intensity do not align with the principle that different parts of the cochlea correspond to different pitches. Place theory emphasizes the physical location where sound is processed rather than the strength or loudness of sound waves.