Which one of the following is enforceable?
◦ Ms. Jones promised to pay an additional $1 to Mr. Wood if he finished the existing contract on time, according to the terms of the contract.
◦ An ad in the paper promises to pay $5 for the return of a lost ring, but the person who finds and returns the ring never saw the offer in the newspaper.
◦ Mr. Ho promised to give his needy friend, Mr. Jahn, $1.
◦ Ms. Goode promised to send $10 to Mr. Paul, who kindly came and warned her when he saw a tow truck approach her car.
◦ Mr. Baker was so sick of an old chair that, when Mr. Venson offered him $10 for it, he agreed (i.e., promised to sell it to him), although the market value of the chair was $80.
