According to the passage,the author of the article may agree to which of the following statements?
A.
It is appropriate to send your invitation cards three or four days before a dinner party date in U.S.A.
B.
It may be appropriate to send your invitation to your guests three or four days before a dinner party date in some cultures.
C.
It is best for one to make telephone calls at night because it costs much less.
D.
If one is less than 5 minutes late,he has to make a short apology.