For most formal occasions, it's best to invite guests three or f

For most formal occasions, it's best to invite guests three or four weeks in advance.

A.大多数正式场合.最好三到四个星期后发出邀请。

B.大多数非正式场合.最好三到四个星期后发出邀请。

C.大多数正式场合.最好提前三到四个星期发出邀请。

D.大多数非正式场合.最好提前三到四个星期发出邀请。

正确答案是C