An Agent May Agree to Become Liable on a Contract

Multiple Choice

An agent may agree to become liable on a contract between a principal and a third party in all but which of the following ways?

A) Making the contract in the agent's own name.
B) Guaranteeing that the principal will perform the contract between the third party and the principal.
C) Disclosing the principal's name and the agency relationship.
D) Co-making the contract with the principal.