Dr Ayau Is a New Doctor Who Has Just Set

Dr. Ayau is a new doctor who has just set up a practice in San Diego. She places ads in the papers to tell people that she will see patients and she will be in her office on Sundays. The California Medical Assn. (CMA) moves to strip Dr. Ayau of her license to practice medicine because such ads are unethical. The Supreme Court is likely to say that the CMA:

A) has the right, under state law, to regulate the practice of medicine and to set ethical standards for all physicians
B) has the right, under the necessary and proper clause, to regulate advertising medicine
C) has the right, under the commerce clause, to so regulate the advertising of medicine
D) cannot prevent doctors from using truthful advertising to help their business
E) cannot regulate medicine because it conflicts with the right of Congress to do so