The correct answer is (D) A discount; deduction from amount to pay; drawback. A return of part of the purchase price of merchandise or a service; partial refund.

Rebate comes from Middle English rebaten, Old French rebatre (to beat, put down)

Examples of use:

• The coupon provided a fifty dollar rebate on the purchase of any computer.
• No rebate was offered on the merchandise marked already reduced in price.