C. Germany's attack on Russia was similar to betraying all the rules of civilization.
Russia's intention was clearly aimed at making peace with Germany, otherwise they would not have signed the peace treaty. The fact that Germany then turned around and broke that treaty because of how horrible their leaders were, shows that they were not following established rules of civilization.
Because he sacrificed his good friend to ensure that Romans would not be enslaved.
They use cunning forms of temptation when they say Macbeth is destined to be king of Scotland and show him their foretelling visions/apparitions (Shakespeare I, iii, 1–75). Consequently, by placing these initial ideas in his mind, the Witches essentially put him on the path to his own ruin.
