Waldman Associates Received a Written, Approved Contract to Deliver Economic

Waldman Associates received a written, approved contract to deliver economic consulting services, with service commencing in one month. The contract specifies the services that Waldman is to perform, and the payment terms. Waldman and the customer both can cancel the contract without penalty prior to commencing service. Does Waldman have a contract for purposes of revenue recognition on the day the contract is received?

A) Yes, because Waldman has a written approved contract.
B) No, because Waldman can cancel without penalty.
C) Maybe, depending on whether Waldman can estimate collectability of the receivable.
D) Insufficient data on which to base an answer.