Since the Late 1970s,the United States Has Been in a Period

Since the late 1970s,the United States has been in a period of deregulation during which:

A) federal agencies were newly created to undertake legislative functions of the government.
B) administrative agencies acted as governments,performing purely executive,legislative,and judicial roles.
C) federal powers were separated from the powers of the states.
D) great efforts were made to reduce the role of government in big portions of American life.