According to Economist George Stigler,the Process of Regulating Firms with Market

According to economist George Stigler,the process of regulating firms with market power becomes suspect over time because

A) regulators shift from protecting the consumer to protecting the regulated firm from competition.
B) regulators impose additional costs on regulated firms because they are expected to accomplish other social goals.
C) regulated firms are allowed to expand into other markets and drive out competing firms.
D) regulated firms devise methods to circumvent the regulations.
E) regulation leads to corruption of political parties.