It wasn’t her who you saw in her office last Frida...

Câu hỏi: It wasn’t her who you saw in her office last Friday because she she's been out of town for two weeks.

A. You needn’t have seen her in her office last Friday; she's been out of town for two weeks.

B. You shouldn’t have seen her in her office last Friday; she's been out of town for two weeks.

C. You can’t have seen her in her office last Friday; she's been out of town for two weeks.

D.  You mustn’t have seen her in her office last Friday; she's been out of town for two weeks.