The 1989 Case of Sable Communications V

The 1989 case of Sable Communications v. FCC, which dealt with the FCC's authority to regulate "phone-sex" services, resulted in what ruling?

A) the court threw out the case because the FCC has no authority to regulate communication by telephone
B) the court threw out the case because Sable Communications was located in California, where "phone-sex" services were legal
C) because "phone-sex" was considered indecency rather than obscenity, it could not be prohibited in its entirety, but could be regulated
D) the federal law was constitutional and could be enforced because it conformed with standards established by the Miller Test