Sue Offers to Buy a House from John and They

Sue offers to buy a house from John and they were negotiating the price of the house.In the meantime,Sue confides in John's wife that she is willing to pay an amount of $50,000 for the house.Delighted to hear this,John's wife tells John the good news.John immediately calls Sue and accepts her offer.Is there a binding contract?

A) Yes,because there is valid consideration.
B) Yes,because a third party has communicated the terms of Sue's offer to John and John accepted the same.
C) No,because the offeror did not communicate the terms of the offer to the offeree.
D) No,because the contract is still not signed by both the parties.