The correct answer is A. The Supreme Court ruled that the American government had the right to regulate private business in Munn v. Illinois, in 1877.
Munn v. Illinois was a decision of the Supreme Court in which it confirmed the power of states to control private industries that affect public interests.
The case took place around the Chicago grain company, Munn and Scott, which had violated the maximum prices established by the Illinois General Assembly. The company said that the price limitation was a violation of the right to property, but the Court established that, being a company that compromised a public interest, its regulation also committed the State of Illinois, as a protector of the rights of its citizens.
