The U. S. Constitution allows citizens the right to freedom of speech. The decision in the Schenck v. U. S. case restricted speech at times when it will cause a "clear and present danger." The Whitney v. California (1927) case clarified that part of the "clear and present danger" clause included speech that is a threat to a person or society. Which is an example of a time when it is legal to restrict citizen's speech? A. when a person makes a speech about violently overthrowing the government B. while the United States president is giving a State of the Union address C. at a baseball game while the national anthem is being sung or played D. in war time when people are discussing their dislike for the United States military