Which of the Following Statements/questions Is the Best to Make

Multiple Choice

Which of the following statements/questions is the best to make to a student who hasscored high on an exam or project?

A) "How did you pull that off?"
B) "You are so smart!"
C) "Let's hope you can do as well on the next one!"
D) "Your hard work on this unit really paid off!"
E) "You did better than anyone else in the class!"