Barney Explains to Mrs

Barney explains to Mrs. Adams that the contract is an option on her land, that he is an agent, and that the principal wants to remain undisclosed at the present time. If Mrs. Adams signs the option agreement, can it be enforced against her even though the principal is not named and the agent fails to sign?

A) No, because an agent always lacks the authority to bind an undisclosed principal.
B) No, since this agreement is for interest in land, it must have all the essential terms of a written contract.
C) No, since the names of both parties are needed on a written contract.
D) Yes, since only the charged party needs to sign the agreement.
E) Yes, because the agent clearly identified himself.