To Promote Their Business, Some Psychics Advertise on Television Free

To promote their business, some psychics advertise on television free tarot-card readings and other insights into their customers' futures. Unfortunately, this "free reading" has cost some unsuspecting callers as much as $700 in phone charges. This sort of pricing practice would be primarily monitored by the

A) Consumer Protection Agency.
B) U.S. Department of Justice.
C) Federal Trade Commission.
D) Federal Communications Commission.
E) Consumer Product Safety Commission.