Wich of the following would be an exception to the right to peacefully assemble

Question

A group of people protesting increased fees block the entrance to a bank
A political interest group holds a meeting in a private home
A group of union members goes on strike against a public utility company
A group of protestors marching and promoting violence in a neighborhood

Answer 1

A group of protestors marching and promoting violence in a neighborhood would be an exception to the right to peacefully assemble.