Which of the following provides the BEST definition for a "beneficiary"?

A. An individual who receives the benefit of a service or program; most commonly used in reference to private, state, and federal health and/or medical insurance policies
B. The physician responsible for completion of documentation specific to the hospital inpatient setting, including documentation intended to facilitate coordination of care with other physicians, nurses, and any other clinical staff who will provide care and treatment for the patient
C. Specific physician who may not be the only clinician involved in the observation of this patient, but who is responsible for the observation service provided for the patient
D. The term used to identify the physician who has provided no consultation services for a specific patient, and accepts primary responsibility for some or all of this specific patient's care from another physician who had previously provided primary care for a specific presenting problem or the patient's entire care

A