Able goes to an auction at Christie's Auction House to bid on behalf of Baker. Able never explicitly discloses that he is there on Baker's behalf, but during the auction Able is on the phone and is clearly taking orders from whom ever is speaking to him, which is Baker. Able successfully bids on an item put up for auction by Carter. Baker later refuses to pay the price Able bid. Which of the following statement is true?

Able is liable to carter as the agent of an undisclosed principle.

Able is not liable to Carter because he is the agent of an unidentified principle.

Baker is liable as a disclosed principle

Baker is liable as an unidentified principal.

None of the above.