The American consumer protection law dictates that consumers have the right, but not the obligation, to return unwanted or defective merchandise for full refund. The money-back return policy usually lasts from the date of purchase to 90 days after the purchase. In the language of options, this return policy can best be described as a(n) _________________.

European-type put option

American-type put option

American-type call option

European-type put option