The core point of this question is to understand the author's attitude towards the 'having it all' philosophy. The correct answer is C because the passage suggests that the author has moved away from this philosophy to a state of contentment, implying that it was a barrier to her personal growth. Option A is incorrect because the author does not suggest it is achievable for everyone. Option B is wrong because the author actually moved to a state of contentment away from 'having it all'. Option D is incorrect because the author has transformed from a proponent of this philosophy to someone who is happy with less.