I believe the answer is A. This is because the sentence is supposed to be parallel and all of the verbs(except for hiss) have to be past tense.
What Wiesel means is that it would be a crime to forget. By forgetting the actions of the Nazis, we are contributing to the pain caused. If we forget we are letting the Nazis get away with what they did without facing any consequences
One thinks that life is difficult the other knows how to live a living
Some political theorists might argue that individual rights must, at times, be sacrificed to promote "the common good", since if everyone were to act impulsively and follow their individual will at all times, society would suffer. <span />
