Mr. and Mrs. Morrow want to instill a sense of intrinsic motivation in their 5-year-old daughter Yin. Yin brings home a drawing of her school and classroom. How should the Morrows respond?
A) "Wow! You are the best artist at school!"
B) "You really should have worked harder on this."
C) "Why didn't you color your picture?"
D) "You really worked hard on this drawing!"