Extrapolating from the Research on Relational Aggression, Which of the Following

Extrapolating from the research on relational aggression, which of the following would be the best thing a parent could teach a young girl?

A) Have a thick skin about what other people think, and work on developing a few good friends.
B) Practice running so you can be very fast.
C) Make sure that you always carry a cell phone.
D) Always keep your fists up to guard your face in a fight.