You're a prominent businessperson, and you have a 21-year old daughter who has just been offered a contract to perform in legal, but pornographic movies. You know this will ruin your reputation and your business, so you offer your daughter $500,000 if she will refrain from making any movies that include nudity for the next 10 years. She agrees, and she keeps her promise. At the end of 10 years, you refuse to pay your daughter the $500,000. She sues you for breach of contract. Will she win? In your answer, thoroughly discuss the 4 requirements for a valid contract and the 2 defenses to enforcement of that contract.