Final answer:
The correct identification of the wave parts labeled A, B, and C in the diagram is A as the trough, B as the crest, and C as the wavelength.
Step-by-step explanation:
The diagram provided likely shows different points on a wave, and to correctly identify the parts of a wave from the given options, one needs to understand the terminology associated with waves. A crest is the highest point on a wave, and a trough is the lowest point. The wavelength is the distance between two consecutive identical points on the wave, such as from crest to crest or trough to trough. Based on this information, the correct identification for the parts of a wave labeled A, B, and C in the diagram would be:
- A is the trough; B is the crest; C is the wavelength
This means that the wave's crest is the peak or highest point, the trough is the bottom or lowest point, and the wavelength is the horizontal distance between two crests or two troughs.