— It's said a pianist will perform at Poly Theater on Friday evening. Is it Lang Lang?

— Yes, it _______ him. He _______ for a week.

A．must be; has arrived here

B．Can’t; has been here

C．must be; has been here

D．maybe; has arrived here

育强轮（呼号BOXZ）加入中国船舶报告系统（CHISREP），由于没有及时报告船位，致使船舶报告站通报表中出现BOXZ/XXX的字样，据此可以判断该船报告延误的时间是（）。

A、6h

B、12h

C、18h

D、24h