Which of the Following Is an Example of a Rebate

Multiple Choice

Which of the following is an example of a rebate offered to buyers?

A) Getting $25 off a $100 purchase on exchange of a used product.
B) Getting $3 off a $100 purchase for paying the bill within 10 days.
C) Getting $5 returned by mail after a $100 purchase for making the purchase.
D) Getting $100 off a $1,000 purchase for buying in bulk quantities.