Which of the following is true?

a. Physicians who use unorthodox methods of treatment are less likely to be found negligent than those who use conventional treatment.

b. Physicians who use unorthodox treatments with patients who are critically ill are less likely to be found negligent than if they use unorthodox treatments with those suffering from minor ailments.

c. The degree of innovation that a physician uses that is legally acceptable depends on the seriousness of the situation.

d. All of the above.