Marly Has Wanted to Be a Professional Tennis Player Since

Marly has wanted to be a professional tennis player since she was 6 years old and has taken after-school lessons since then. She is now 17 and wants to pursue it more seriously-with the goal to be skilled enough to play competitively and then turn pro within three years. Her parents tell her that the time and effort this requires will interfere with her schoolwork and may ruin her chances of getting into her mother's alma mater of Stanford and joining the family business. She decides to hold off on tennis and focus on school instead. Which goal-achieving obstacle is most likely at play here?

A) Trying to go it alone
B) Not really wanting it
C) Trying to please someone else
D) Being a perfectionist