The answer is D.<span>Many Germans believed the treaty was unfair and humiliating, and Hitler used their anger to gain support</span>
Answer: The thing that motivated the enormous loss of life in the extermination camps was Hitler and the Germans hatred for Jews.
Explanation: Hitler believed that the Jews were spreading Anti German propaganda in the 1st World War. He blamed them for the reason as to why Germany lost in World War 1. He wanted to get revenge on them. He made the majority of the German citizens believe that the Jews must be exterminated because of this.
People moved from place to place slowly, and their transportation options were limited.
The answer to this question is Samuel Slater. He came to America to seek his fortune in the textile industry.