The State of New Boledo currently restricts the kinds of advertisements that plastic surgeons may use to publicize their businesses. Typically, however, plastic surgeons who advertise a service have lower rates for that service than do plastic surgeons who do not advertise. Therefore, one way for the state to help lower the costs of elective medical procedures is to lift the restrictions, such as those prohibiting advertisements that discuss financing, that currently apply to plastic surgery advertising.

Which of the following, if true, casts the most doubt on the author's conclusion about the costs of elective medical procedures?


A. The State of New Boledo has already eliminated some laws that prohibited certain kinds of plastic surgery advertisements.

B. Officials from New Boledo have made it clear that they will never completely deregulate plastic surgery advertising.

C. Plastic surgeons who advertise are generally as skillful as plastic surgeons who do not advertise.

D. Some plastic surgeons would choose not to advertise their financing rates even if permitted to do so.

E. The majority of plastic surgeons who advertise their services have the same prices before advertising as they do after advertising.

[spoiler]OA : after initial discussion [/spoiler]