Which of the following is represented by the letter A in the diagram below?
the options:
Amplitude
Crest
Trough
Wavelength
![Which of the following is represented by the letter A in the diagram below the options Amplitude Crest Trough Wavelength class=](https://us-static.z-dn.net/files/d9f/49d9bf3540dbaf3042d5be6450eeaaa1.jpg)