Which of the Following Scenarios Can Potentially Be Seen as a Violation

Which of the following scenarios can potentially be seen as a violation of the First Amendment?

A) An accused thief spends two years in jail before receiving a trial.
B) A corporation fires an employee for voicing his or her opinion on the presidential election.
C) A defendant is forced to testify in his own trial.
D) A woman is arrested for organizing a peaceful meeting to protest the federal government's actions.
E) Police officers suspect that a man is a thief but enter and search his home before they obtain a warrant.