According to Marcia's theory on identity status, Commitment is being focused by Megan.
Option A
Explanation:
The dimension of Marcia's theory that is being highlighted here by Megan is commitment. Marcia's theory of identity argues and presents the two different parts of an adolescent's identity:
He defined that crisis are the time of upheaval where ethical values or choices are being examined again. The end result of a crisis leads to commitment which is made towards those choices or values. As in the given situation the commitment is made by Megan toward her passion of becoming a pop star that what makes her go to learn music.