The author uses people to describe the scene.
Number one is an allusion
Number two is a metaphor because it is comparing the dudes face to a white sheet but it didnt use like or as so its not a simile.
Number three therefore would be a simile because it uses the word as to compare two things.
Answer:
Hitler thought that History was about race, he listened to the Ideas of Darwin, the survival of the fittest, thus Hitler killed millions of people the he thought were not deemed "fit" in Germany.
Explanation: