Final answer:
A Primary Care Provider (PCP) is the health professional who acts as the first point of contact in the medical system and provides referrals to specialists if needed, such as a nephrologist, orthopedist, or cardiologist.
Step-by-step explanation:
The correct option is c. Primary Care Provider (PCP). A Primary Care Provider is a health care practitioner who sees people that have common medical problems. This person is most often a doctor, but may also be a physician assistant or a nurse practitioner. The PCP is the person your loved ones see first when they have a medical problem. If they have any health concerns that require a specialist, the PCP will refer them to an appropriate one, like a nephrologist for kidney issues, an orthopedist for musculoskeletal disorders, or a cardiologist for heart diseases.