Because of the High Costs of Coupons and Their Disappointing

Because of the high costs of coupons and their disappointing redemption rates,marketers of packaged goods are doing which of the following?

A) distributing single-coupons that can be redeemed for exclusive brands
B) Lengthening the time the coupon can be redeemed to give consumers more time to use them
C) shortening the time the coupon can be redeemed to create a feeling of urgency
D) issuing more coupons and using more everyday low pricing