John has a house in Auckland. He signs a document authorising Terry to sell the house and sign the sale contract on his behalf. Jane is keen to buy it. Terry shows Jane the written authorisation. After some negotiations, Jane as the purchaser and Terry sign a contract for the sale of the house. Terry signs in his own signature but also puts "(on behalf of John)" beside his signature. But now John refuses to transfer the title to Jane, which is a breach of contract. John is saying: "Well, look at the signature. It's certainly not mine." Who is liable to Jane for breach of contract?

Group of answer choices

Both John and Terry.

Terry only.

Neither John nor Terry.

John only.