Final answer:
Being an on-call doctor typically obligates a physician to treat if they have prior agreements outlining their on-call duties. These agreements usually stipulate the extent of care they are expected to provide, which can include both treatment and advice.
Step-by-step explanation:
The question relates to the ethical and professional obligations of an on-call doctor. Being an on-call doctor typically obligates a physician to treat because they have entered into an agreement to be available to provide care during specified times. This responsibility is part of the contractual and ethical expectations of the role.
Option C) They are only obligated if they have prior agreements is the most accurate. On-call doctors usually have agreements with their employer, such as a hospital or clinic, that outline their duties and the extent to which they must be available to provide advice or direct treatment to patients during their on-call hours. While on call, a physician must generally be ready to evaluate patient concerns, which may involve providing treatment or advice, whether directly in-person or remotely, depending on the situation.