Answer:
I'm pretty sure it's because Darry slapped
<span>For the first time in decades, Baby Boomers have been outnumbered by another group—the Millennials.</span>
I haven’t read the book but the best answer would be A. Reason is that August is being nice to her and she can trust her.
1) c. and d. because they both describe when and to what extent.
2) a. and d. because these describe to what extent and how.
3) b. because it describes to what extent
4) d. because it describes when.
5)