Ann's electric clothes dryer was unreliable, and she sought a replacement. She noticed an advertisement in the newspaper for a used dryer, in like-new condition, at a price of $200. She visited the residential address given, and was shown the dryer, sitting against the wall inside a garage. The elderly lady who owned it had died, and her son was selling her possessions. Ann was delighted, paid $200 and took the dryer home. When she tried to install it, she discovered it was designed to run on natural gas rather than electricity, a fact that had not even occurred to her to check. Does a contract exist in this situation