I don’t know his address. I can’t give it to you

Câu hỏi: I don’t know his address. I can’t give it to you

A. Unless I knew his address, I would give it to you.

B. Provided I knew his address, I wouldn’t give it to you.

C. But for my knowing his address, I would give it to you.

D. If I knew his address, I would give it to you.