Answer:
Step-by-step explanation:
It is between C and D, and likely either would do. Why would anyone (or 3 anyones) jump out of a broken window and head down an alley? Mighty suspicious if you ask me.
As for C, the police are involved, they have established some sort of identity of 3 boys who are guilty of something (crimes) and the school these three go to, the police know nothing. This is not a romance, but it might not be a mystery either. It could be an identity problem.
I'll choose D because it has better detail.