Sierra and Hannah went snowboarding at Mammoth last winter. On the trip Sierra admired Hannah's snowboard, and told her so. Hannah told Sierra that she was going to buy a new snowboard in the summer and that Hannah would sell this board to Sierra for $300. Sierra agreed to buy the board. That August Hannah bought a new snowboard. She called Sierra and told her she was ready to complete the sale. Sierra responded by saying "What sale?" Hannah reminded Sierra of the conversation they had had that winter about Sierra buying Hannah's old snowboard. Sierra's response was "Oh, I was just admiring your board. I didn't want to buy it."

a. You be the jury. Do Sierra and Hannah have a contract?

b. Discuss the applicable law(s) and then apply the law(s) to the material facts in the problem. In discussing the law, describe each element of the law and the facts that apply to each element.