Which of the Following Is Not a Not a Reason

Which of the following is not a not a reason for the current popularity of product placement?

A) Product placement adds realism to programming, improving the overall quality of the media.
B) They can have a longer "shelf life"than traditional advertising.
C) The fees paid for product placement often help cover the costs of production.
D) They typically fall below the "absolute threshold," allowing for true subliminal persuasion.
E) All of the above are reasons for their popularity.