Frequency is to pitch as amplitude is to

A) rhythm.
B) loudness.
C) olfaction.
D) wavelength.

Frequency

The frequency at which an event happens or reoccurs within a specific timeframe or sample.

Amplitude

The extent or range of a variable wave, such as sound or light, often measured from the middle value to an extreme.

Pitch

A perceptual property of sounds that allows their ordering on a scale from low to high, primarily associated with the frequency of sound waves.