Final answer:
The name for the distance from one wave's crest to the next wave's crest is the wavelength. Therefore correct option is B
Step-by-step explanation:
The distance from one wave's crest to the next wave's crest is known as the wavelength of the wave. The wavelength is defined as the distance between adjacent identical parts of a wave, parallel to the direction of propagation, and is commonly represented by the Greek letter lambda (λ). This distance can be measured between any two consecutive identical points such as from crest to crest or from trough to trough. By understanding the concept of wavelength, one can also determine the wave's frequency as waves with shorter wavelengths tend to have higher frequencies and vice versa.