A wavelength shows:
A. Sound waves graphically in a waveform, where the hertz can be seen as the number of cycles that occur in a given time period.
B. Sound waves graphically in a waveform, where the pitch can be seen as the number of cycles that occur in a given time period.
C. Sound waves graphically in a waveform, where the intensity can be seen as the number of cycles that occur in a given time period.
D. Sound waves graphically in a waveform, where the frequency can be seen as the number of cycles that occur in a given time period.