Answer:
A. limit free speech.
Step-by-step explanation:
The first amendment of United States constitution protect the citizens' ability for "Free speech". This law was intended to give the citizens with the power to protest the government. But many people interpret it as the ability to say whatever they want to other people without consequences.
The "clear and present danger' test was devised by the Supreme Court. The consist of standards that law enforcement can follow to differentiate "Free speech" and assault.
As a general rule, If the speech that given by a person either threatening the welfare of individuals, disrupt public order, or agitating other individuals to be a target for attack, that speech would no longer be protected by the 1st amendment.