Abe is involved in an automobile accident and is injured. While he is unconscious, the police call an ambulance which takes him to a hospital. Abe is treated at the hospital and released a day later. The hospital sends him a bill for $2,400, which Abe refuses to pay, claiming it is too high and he never consented to the treatment because he was unconscious. Abe: A. has entered into a unilateral contract with the hospital and therefore will have to pay the bill. B. has entered into an implied in fact contract with the hospital. C. and the hospital have entered into a bilateral contract, the terms of which require that he pay the bill. D. has a quasi-contractual agreement with the hospital.