After the Supreme Court Decided the Miranda Case, Congress Passed

After the Supreme Court decided the Miranda case, Congress passed a law that attempted to reverse the decision in Miranda. In the view of Congress according to the statute it passed, a confession taken in violation of the teachings of the Miranda case could be used against a defendant as long as a judge ruled that the confession had been voluntarily made. In Dickerson v. United States, a defendant had been arrested for federal bank robbery, but Miranda warnings had been defectively given to the arrestee prior to the offering of incriminating statements. In Dickerson v. United States, according to the Supreme Court of the United States:

A) Congress has the power to determine what types of evidence would be admissible in federal courts and, therefore, could determine whether the Miranda rule would stand or fall.
B) state courts are free to enforce or ignore the Miranda decision because the Supreme Court has no general supervisory power over state court practice.
C) the Miranda warnings were required by the Constitution, and Congress had no power to attempt to change a decision of constitutional dimensions.
D) Congress has no power to override any decision of the Supreme Court of the United States because of the separation of powers doctrine.