The correct aswer for: For prior restraint to apply, what must the government prove about the speech in question? Is: c.The speech must present a clear and identifiable danger.
Explanation:
First of all to understand this answer we need to understand the context and remember why it is the answer is only applicable in a certain condition. First of all "prior restraint" is a type of censorship imposed by government toa certain individual or institution for presenting damaging, dangerous and clear objective aggressiveness into a speech. So it is only applicable if the speaker or emission has expressed a clear and objective danger. Breaking someone else's liberties of life.
Drilling and marching were part of the daily activities of soldiers during the Civil War, as well as part of their training. Soldiers used to practice their formations and tactics during training sessions.