Infer: Which actions are legal, according to the First Amendment?
 Arresting people who are friends with criminals.
 Refusing to say the Pledge of Allegiance.
 O Threatening to harm the President of the United States.
 To be a member of the Communist Political Party.
 For NCVA to require teachers to sign a loyalty oath.
 Insulting the President of the United States.
 Starting a new religion, and charging a fee for people to join.
 Banning immigrants from having social media accounts.