Which statement about the differences between Renaissance art and medieval art is correct?

A. Renaissance art was concerned with religion; medieval art was not

B. Medieval artist used a wide variety of color and detail; Renaissance artist used limited colors and few details

C. Medieval art generally conveys action; Renaissance art conveys a sense of stillness

D. Renaissance artists made figures look solid and lifelike by using light and shadows; figures in medieval art look flat

Please help me. I'm stuck on this question and i have no idea what the answer is. Thank you in advance!