Answer:
The correct option is B) Allow her to choose her own activities in order to give her ownership of something she previously "did not like."
Step-by-step explanation:
Your client is a self motivated teenager who focuses on achieving her goals; however, she does not like sports or exercise and has come to you for help losing weight. The best way to motivate her in order to build self efficacy would be to ALLOW HER TO CHOOSE HER OWN ACTIVITIES IN ORDER TO GIVE HER OWNERSHIP OF SOMETHING SHE PREVIOUSLY "DID NOT LIKE.".