A: Do you think that you can have these shirts finished by Friday morning
B: ().

A. Sorry, we haven’t finished yet.

B. Why do you need them so early

C. I’m sorry. I couldn’t possibly get them done by then. Saturday afternoon would be the earliest that you could have them.

D. Don’t you see we’re short-handed

在SQL语言中，实现事务的提交的语言是______。

A．GRANT

B．REVOKE

C．ROLLBACK

D．COMMIT