How Is the New Check-Out Coupon System Offered by 12

How is the new check-out coupon system offered by 12 Digit Marketing unique? 

A)  It delivers coupons based on the particular brands a shopper has purchased. 
B)  It delivers coupons for the sponsored brand when the sponsored brand is purchased. 
C)  It delivers coupons for the sponsored brand when a competitor's brand is purchased. 
D)  It allows marketers to deliver coupons to consumers who satisfy specific targeting requirements. 
E)  It allows manufacturer to compete for the right to provide the coupon based on a scanned purchase.