【单选题】Smith Petroleum, Inc., contracts to sell oil to Jones Petrochemicals, telling Jones that it is acting on behalf of "a rich Saudi Ar who doesn't want his identity known." Smith signs the contract...
A.
not be liable, because Smith signed the contract as an agent.
B.
not be liable, unless Jones knew Smith did not have authority to act.
C.
be liable, unless Jones knew Smith did not have authority to act.
D.
be liable, because Smith signed the contract as an agent.