Answer to Question 1
E
Answer to Question 2
Rayleigh is the differential scatter of visible light due to the presence of atmospheric gases and particulates smaller than the wavelengths of most visible light. As a result, mostly light in the blue and violets wavelengths are scattered, given the sky on a clear day it's blue color. Mie scatter is caused by atmospheric particles larger than the wavelengths of light. When all wavelengths of visible light are scattered (due, for instance to numerous clouds, smog, or haze), the sky can appear gray or white.