_______ you don’t stay out too late, you may go to the party. But remember to be back here no later than 11:30 pm.

A．Now that

B．Until

C．Provided that

D．Although

某企业2000年完成产值200万元，2001年计划增长10%，实际完成231万元，则产值超额完成计划（）。

A.115.5%

B.5.5%

C.15.5%

D.5%