A Person Acting (Or Purporting to Act) as an Agent

A person acting (or purporting to act) as an agent who signs an instrument:

A) is liable if he signs his name without indicating agency status but the check has the principal's identification on it.
B) is not required to be the authorized signature of the principal.
C) is liable if he signs his own name and makes clear he is doing so as an agent.
D) binds the principal to the same extent as the principal would be bound if the signature were on a simple contract.
E) is not liable when he signs incorrectly.