Help asap!!! what would be the answer?

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.

The most original genius of incan art can be seen in their? a. goldsmithing b. stonework c. architecture d. jewelry making only answer if you are 100% positive your answer is correct 10 points!

Most flexible painting medium, used to create both thin, polished layers and thick, gestural brushstrokes