Which of the Following Statements Is True About Medical Law

Which of the following statements is true about medical law?

A) Because of the doctrine of respondeat superior, the physician becomes responsible for all negligent acts of his or her employees even when he or she is not giving them direct orders.
B) A case in which a patient negligently refuses to follow a physician's instructions comes under the umbrella of the res ipsa loquitur doctrine.
C) The physician is contractually bound to cure a patient.
D) A physician dispensing controlled substances must be registered with the Drug Enforcement Agency.
E) All of these