What Realization Has Led to a Growth of Government Regulation

What realization has led to a growth of government regulation of business in the United States?

A) A laissez-faire approach does not always result in competitive markets.
B) Business cannot be trusted to seek profits.
C) Members of the public deserve a say in everything that affects them.
D) American competitiveness requires a government role in business.
E) Government study of business practices will increase government efficiency.