All of the following are regulatory commissions dealing with industrial regulation (as distinct from social regulation) except the:

A) Food and Drug Administration.
B) Federal Energy Regulatory Commission.
C) Federal Communications Commission.
D) 50 state public utility commissions.

Industrial Regulation

Government rules and regulations specifically aimed at controlling the activities, standards, and behaviors within specific industries.

Food and Drug Administration

A federal agency of the United States Department of Health and Human Services, responsible for protecting and promoting public health through the control and supervision of food safety, tobacco products, dietary supplements, prescription and over-the-counter pharmaceutical drugs, vaccines, biopharmaceuticals, medical devices, and veterinary products.

Federal Energy

This term could refer to the energy policies or initiatives undertaken by a federal government to manage the nation's energy resources and needs. Without more context, it's hard to provide a more specific definition.