Answer:
Amplitude is the correct answer.
Step-by-step explanation:
The vertical distance between the centerline of a wave and the crest called Amplitude.
frequency is the number of waves passes at fixed placed in the provided amount of time.
The trough is the lowest spot on the wave.
The horizontal distance among the two nearby crests or troughs is called the wavelength.
The wavelength is the distance among similar points of two progressive waves