What does this timeline show about the role of the Supreme Court in defining limits on free speech?

1914: World War I begins.

1917: Charles Schenck distributes pamphlets encouraging U. S. men to
resist serving in the military.

1919: The Supreme Court rules that Schenck's action is not protected because it poses a "clear and present danger" to safety.

A. It shows that the Supreme Court is empowered to speak on behalf of the nation.

B. It shows that the Supreme Court can only limit free speech in ways that are already written in the Constitution.

C. It shows that the Supreme Court can set new rules for free speech if the Court feels circumstances require it.

D. It shows that the Supreme Court cannot limit free speech unless Congress agrees.