As Quaker Oats tries to decide how to introduce its new line of breakfast bars, it considers all the advantages and disadvantages of the various consumer sales promotion methods. After careful consideration, Quaker Oats decides to use _____, which are the most widely used form of consumer sales promotion.
a) free samples
b) rebates
c) point-of-purchase displays
d) coupons
e) cents-off offers
Answer: d) coupons