Which of the Following Is True About a Pulsing Message

Which of the following is true about a pulsing message reinforcement strategy?

A) It is more expensive than maintaining a high level of awareness with traditional media.
B) It can be used for products that are purchased more frequently at some times of the year than at others.
C) It involves maintaining a certain level of base advertising at all times.
D) It reduces copy wear-out due to overexposure to the same messaging.
E) It involves increasing the message frequency just before and during the prime buying period of a product.