Politicans Tried to Pass a Bill Requiring Concert Promoters and Venue

Politicans tried to pass a bill requiring concert promoters and venue operators to print parental warnings on tickets and advertisements for concerts and shows by performers whose recordings have already been given content advisory labels.Promoters and venue operators prevented the passage of this bill that would have required them to make value judgments they felt ill equipped to make.What were the concert promoters and venue operators engaging in?

A) internal marketing
B) illegal practices
C) environmental management
D) corporate espionage