Which of the Following Is NOT an Advantage Inherent in the Use

Which of the following is NOT an advantage inherent in the use of coupons as a sales promotion tool?

A) Coupons offer price reductions to consumers who are price sensitive.
B) Coupons are an effective way of generating trial of a new product.
C) Coupons are often used by consumers who already use the brand and would purchase it without a coupon.
D) Coupons can encourage non-users to try a brand.