With regard only to the requirement of consideration, which one of the following would be a binding contract? 000 0 a promise by Tom to drive a co-worker to Timmins a promise to give $10 exchanged for a promise to give a can of pop a promise by Mr. Brent to pay $25 to John who found and returned Brent's wallet, which Brent didn't even know he had lost until John delivered it an agreement between a contractor and a homeowner that the owner would pay an additional $1,000 if the contractor would complete the existing contract according to all its terms a written promise, but not under seal, to give John $50 on Saturday