I didn’t meet him yesterday so I couldn’t tell hi...

Câu hỏi:  I didn’t meet him yesterday so I couldn’t tell him about that. 

A. I met him yesterday so that I could tell him about that.

B. If I hadn’t met him yesterday, I couldn’t have told him about that.

C. If I had met him yesterday, I could have told him about that.

D. I could tell him about that because I met him yesterday.