Answer:
Color's theory of emotions, and some of the significance they hold to artists and art lovers
Explanation:
Mannerism stepped away from being perfectly proportional in paintings. artists created their subjects with exaggerated limbs, and they often looked at the fearful and tense subjects of society rather than the beauty.
I believe the answer is, actually, D. The red will be too exciting and distracting to the calm library.
If you research the library, it is actually quite a colourful place, but the red on the inside, as well as the outside, would have been too much and indeed; distracting and exciting.