Caleb puts up an Ad in the fraternity house that says: FOR SALE: Gray 2010 Honda Accord, Price: $5,000 or best offer, Good condition, 110,000 miles See Caleb - 222-2222 Joe sees Caleb about the ad- He says, I want to buy the car. Caleb says, sorry, not selling it to you. Joe wants to sue Caleb for breach of contract. Is Caleb's offer a valid offer? Answer these questions: What are the elements to form a valid contract? What are 3 elements necessary for an effective offer? What might Caleb argue? Are Ads valid offers?