Manny Agrees to Provide Pool-Cleaning and Lawn-Care Services to Janice

Multiple Choice

Manny agrees to provide pool-cleaning and lawn-care services to Janice in preparation for a party Janice is holding for family and friends.The agreement requires that Janice pay Manny $250.00 for three hours work.After completing approximately half the job,Manny requests that Janice pay him an extra $50.00 because the cost of gasoline used for the lawnmower had gone up that morning.Janice agrees to pay the additional $50.00.Is she legally liable to do so?

A) Yes,because she told Manny she would pay him and he finished the job on the basis of her promise.
B) Yes,because the rising price of gas should be borne by Janice.
C) No,because Manny had an existing contractual obligation to perform the services for $250.00 and there is no consideration for the subsequent agreement to pay $50.00 more.
D) No,because Janice is promising to reward Manny for something he has previously done and past consideration is no consideration.
E) Yes,because Manny relied on Janice's promise.