Read the following excerpt from Senator Rober M La Follette Sr’s Senate Address, Free Speech in War Time, 1917.

Prior to the declaration of war every man who had ventured to oppose our entrance into it had been condemned as a coward or worse, and even the President had by no means been immune from these attacks.

Use context clues or a dictionary to select the best definition for use of immune.

attacked or defamed
pressured or encouraged
exempt or protected
diseased or damaged