We regret to inform you that your application has...

Câu hỏi: We regret to inform you that your application has been not successful.

A. We apologise for informing you that your application has not been successful.

B. We have to inform you that your application has not been successful although we regret.

C. We have to inform you that your application has not been successful because we regret.

D. Much to our regret, we have to inform you that your application has not been successful.