Physics for IGCSE & O level - Waves And Sounds (Section 1 - No. 28)

What does the 'range of human hearing' describe?

The range of amplitudes humans can perceive.

The range of frequencies humans can perceive.

The range of wavelengths humans can perceive.

The range of speeds of sound humans can perceive.

The range of human hearing is the range of frequencies that humans can perceive.