问题
Do you know _____ by the police last night — Yes, because he spread a rumor(谣言) on Wechat.
A:how was a teenager caught
B:how a teenager was caught
C:why was a teenager caught
D:why a teenager was caught;
B:how a teenager was caught
C:why was a teenager caught
D:why a teenager was caught;
正确答案是：
