Quon decides to sell his antique roadster, so he places an ad on craigslist. He lists the roadster as a 1957 mercedes benz 300sl roadster, describes it as in good working condition, and states that no reasonable price will be refused. Fern responds to the ad and offers to pay $25,000 to quon for the car, which quon agrees to. In this scenario, who is the offeror?.