Please answer each of the following questions. In doing so, please state the rule, law, statute, legal theory, or precedent that you used in arriving at your answer. You do not have to answer in complete sentences, but yes or no answers (without further elaboration) do not count.

1. On Monday, Oscar tells Lucille that she may purchase a large tract of lemon groves from him if she can give him $100,000 by Friday. Lucille agrees. On Wednesday, Oscar changes his mind and tells Lucille that he no longer wants to sell his land. If Lucille sues Oscar to enforce the contract, what will be the likely result?
2. Lindsay and Tobias sign a contract to host their wedding reception for 150 guests at the Gothic Castle in Orange County. Two weeks before their scheduled wedding date, Orange County prohibits all gatherings over 20 people. The Gothic Castle informs Lindsay and Tobias that they cannot have more than 20 guests at their wedding. If Lindsay and Tobias sue the Gothic Castle for breach of contract, what is the likely result?
3. Buster goes to a local tiger breeder to buy a tiger cub to breed. Buster tells the breeder that he plans to eventually breed the cub and charge spectators to see the babies. When the cub gets older, Buster later finds out that he is sterile and cannot have babies. What possible legal recourse does Buster have against the breeder?