Which of the Following Statements About Dates That Affect Purchases

Which of the following statements about dates that affect purchases of advertising in magazines is true?

A) The in-hand date is the date printed on the cover.
B) The closing date is the date all material must be in the publisher's hands for a specific issue.
C) The four dates that affect purchases of advertising in magazines are cover date,on-sale date,in-hand date,and closing date.
D) The cover date is the date the magazine is actually issued.
E) The cover date and the on-sale date are synonymous.