Acustomer/member tries to use a coupon that is only good for full-price items to purchase an item that is on sale. she becomes confused when you explain that she can't use the coupon.

If a customer does not understand why she cannot use a coupon for full-price items to buy a product that is already on sale, you should show her the details stated on the coupon. Such information about the conditions of use of the coupon is usually stated in the lower corner. If the customer understands the situation better, you can add that, by buying the product on sale, she is still saving money, and can use the coupon on other full-price items, saving even more.

answer: inference

explanation:

an inference can be understood as a conclusion to which a person is able to get based on reasoning. it is the same as a deduction, a guess, an assumption.   in the sentence presented, the conjunction "but" gives the readers an idea of contrast, and, therefore, allows them to induce that despite the opponent's characteristics, andrea had something different that made her win.