keep former slaves out of public schools.
Answer:
C. The English Legislature.
What are the options for the question
The case United States v. E.C. Knight weakened the Sherman Antitrust Act, because the Sherman Antitrust Act reduced competition between companies, because it did not want power to erupt from this. United States vs. E.C. Knight limited the government's power to monopolize companies in this way. The outcome of the case was that manufacturing cannot be regulated by Congress.