Answer:
The correct answer is option (A) "Commitment".
Explanation:
According to Marcia's theory of identity, an adolescent faces two different phases to known her or his identity: "crisis" and "commitment". In this example Megan has overcome the crisis phase because she realized that she wants to become a pop star. Now Megan is in in the commitment phase, where she works to achieve her dream of being a pop star by taking piano and vocal-training classes.