Why is it important for an art critic to have a strong knowledge of art history? A. A background in art history helps validate and justify a critic's judgments . B. If a person hasn't critiqued historical art, he or she won't know how to critique modern art. It isn't possible to appreciate or understand modern art without knowing about all the other movements that came before it. D. It isn't a person only needs to know how to paint to become a well respected art critic.