Which of the Following Statements About Mailing Lists Is True

Multiple Choice

Which of the following statements about mailing lists is true?

A) The normal commission that a list broker pays to a list owner is 10 percent.
B) "Cleaning" occurs when a house list and a compiled list are merged into one.
C) Mail-order advertisers are unable to check the validity of a rented list.
D) The average mailing list changes by more than 40 percent per year.
E) Mailing lists should be updated every four years to maintain validity.