Quince owns a used-car lot where Ray works as a salesperson. Quince tells Ray not to make any warranties for the cars. To make a sale to Sylvia, however, Ray adds a 50,000 mile warranty. Later, Sylvia sues Quince for breach of warranty. Quince's right to hold Ray liable for any damages he has to pay Sylvia arises from the following:______
a) reimbursement
b) the unauthorized act
c) avoidance
d) cooperation