If you are Fu Ge, you are very smart, and your parents ask you to teach the little girl next door who is not good at math. You see a big E written on your little sister's math report card.
What do you want to do?
A. Turn around and leave
B. Teach patiently until you run out of patience
C. Tell the little sister she is an idiot
D. Teach something else
Fu Ge: I choose ABBBBBACCBBCCD for this question.
Purpose: Learn mathematics well