Boiler Rooms with Slick Telemarketers Offered Full Physicals for a Little

Boiler rooms with slick telemarketers offered full physicals for a little or no fee. This free diagnostic service turned out to be very costly because:

A) information was used to file claims against insurance companies and government insurance.
B) patients were pushed to take out loans to cover services.
C) patients' credit card information was obtained and card companies were billed.
D) patients were required to furnish bank information and electronic checks were processed by financial institutions.