Chuck tells Mia that he is looking for a rare edition of The Shining for his book collection, and would pay up to $500 if she were to find him a copy of the book in good condition. Mia is able to locate a copy of the book and pays $450 for it at an auction. She presents the book to Chuck and he refuses to pay her, stating that he was only joking. What are Mia's options?

a. Mia may not recover the $450 from Chuck because there was no bargained-for exchange.
b. Mia may not recover the $450 from Chuck because she did not have a contract with Chuck by formally accepting his offer.
c. Mia may recover the $450 from Chuck because she reasonably and substantially relied on Chuck's promise.
d. Mia may recover the $450 from Chuck because consideration is not necessary in an implied contract.