Contracts -Paula Walked into Pete's Car Repair Shop and Said to to Patrick

Contracts
-Paula walked into Pete's Car Repair Shop and said to Patrick, "I will give you $5 if you rotate my tires." Patrick, Pete's employee, responded, "OK." Paula handed Patrick $5. As Patrick began to rotate Paula's tires, Pete walked in and found out about the job. Furious, he said to Paula, "We charge $25 to rotate tires. We do not have a deal!" Is there a contract?

A) No. Patrick was not authorized to make the agreement.
B) Yes. There was a valid offer and acceptance.
C) No. There was no consideration.
D) No. There was not enough consideration.
E) No. Patrick made a mistake.