Is Medicine in the United States a Social Institution

Is medicine in the United States a social institution?

A) Yes, because doctors need licenses to practice.
B) No, because it is more of an ideal than a social institution.
C) Yes, because organizations like the American Medical Association set policy and shape definitions of health and illness throughout the nation.
D) No, because organizations like the American Medical Association are brick-and-mortar places and not really large-scale patterns of interaction.