In art what is the process of creating images through the manipulation of light?

Death of saranapalus by delacroix demonstates all of the following except a) physical and emotional violence b) the influence of rubens c) opulent color d) a balanced and harmonious composition

In the artwork "that gentleman" by andrew wyeth how intense are the colors? what are their individual values and temperature?

Blind contour line drawings are : a. often used to paint landscapes b. often detailed but not perfect c. often detailed and flawless