Cindy, a Grade School Teacher, Decides to Use the Labeling

Cindy, a grade school teacher, decides to use the labeling technique on one of her students who does not appear to be particularly fond of studying mathematics. Therefore, she says

A) "If you don't do your math homework, you'll be labeled a slow student."
B) "Fine, don't study math. In fact, I don't want you to study math."
C) "You seem to me like the kind of boy who understands how important it is to do your math homework."
D) "If you do your math homework, I'll get you those colored labels you wanted."