How did the supreme court's decision in schenck v. united states affect free speech? a. it expanded it by saying that burning draft cards was a permitted form of symbolic speech. b. it expanded it by saying that speech intended to cause people to break the law was permitted. c. it limited it by saying that opposition to the draft was a danger to the country during wartime. d. it limited it by saying that people could not dishonor the u. s. flag.