Rebates and Refunds Are a Form of Consumer Promotion Where

Rebates and refunds are a form of consumer promotion where:

A) customers are offered regular trial sizes of a product either free or at a nominal price.
B) additional amounts of a product are given to buyers when they purchase the product.
C) customers are offered discounts from a product's regular price.
D) customers are given reimbursements for purchasing a product either on the spot or through mail.