1. Distributor, a food service company, enters into oral negotiations with Antonia, a locally owned company that manufactures gourmet foods for a trendy acia diet. Distributor wants to establish an exclusive arrangement for distributing the acia products in the western states. During the initial negotiations, the parties agreed on the important terms of the agreement, but had not yet worked out all the details. Both parties were excited about the new deal, and AntoniaAssured Distributor, "Don't worry. We'll work the rest of the things out." Assuming that he had the deal sealed, Distributor hired additional workers, leased larger space, and purchased delivery equipment. Shortly thereafter, Antonia told Distributor that it had signed a deal with Jacob Brothers to handle the distribution. Distributor brings an action. Which theory would help then prevail against Antonia?
   1. Promissory estopple
   2. Implied-in-fact contract
   3. Unjust enrichment
   4. Quasi-contract