Can you please answer this question

Amplitude is: a. the number of waves in a certain amount of time. b. the distance between the top or bottom of a wave and the center of the wave. c. the noise floor acceptable in recording. d. the distance between two identical points on a wave.

What motivates lillian jean to tell cassie all her secrets? her feeling of superiority over cassieher feeling that cassie cannot be trustedher need to trick cassie into liking herher need to make cassie feel jealous

Performer emphasizes a tone by playing it more loudly than the tones around it is called?