Answer:
Holden's confusion about his own assertiveness was that he was confused about using the prostitute to lose his virginity, he then ended up realizing that she wasn't fit for him and made an excuse just to make her leave.
Explanation:
What do you need help with?
I think that the answer is choice A. An essay hook is usually the first or second sentences in a paragraph as it aims to grab the readers' attention. In this case, I think that the sentence that hooks the reader is: <span>For the first time in decades, Baby Boomers have been outnumbered by another group—the Millennials. Also, this statement mentions something that might be interesting for the reader. </span>