Which answer choice correctly describes how the US Constitution fixed a problem or problems of the Articles of Confederation? A. Under the Constitution, the people could directly elect their representatives in the US Senate. B. Under the Constitution, the state governments were granted more control over immigration and trade. C. Under the Constitution, the federal government had the power to enforce laws but was checked by Congress and the court system. D. Under the Constitution, political candidates must be a member of a political party so that they represent the interests of the