Much of the State Legislation That Deals with Advertising Is

Much of the state legislation that deals with advertising is based on the:

A) constitution of Great Britain.
B) self-regulation codes published by the advertising profession.
C) "truth-in-advertising" model developed by Printer's Ink,the industry trade paper for many years.
D) U.S.Supreme court's "code of commercial speech."
E) federal government's "General Code of Advertising Ethics."