The Indiana Federation of Dentists Required Its Members Not to Provide

The Indiana Federation of Dentists required its members not to provide insurance companies with patient x-rays. The FTC sued the Federation, claiming that it violated the antitrust laws. The Supreme Court held that dentists:

A) were free to decide whether to give records to the insurance companies or not
B) did not have to give their records to the insurance companies, and the FTC could not sue
C) could not ban together to conspire in restraint of trade against the insurance companies
D) had an ethical duty to protect patients' records, so the Federation's position was upheld
E) none of the other choices