Wiesel thought that Aushwitz was better that Birkenau. Hope this helps!
The last choice, "Teens who sleep less than 5 hours a night suffer from more immune related illnesses according to a study released in 2015 by the American Journal of Medicine." It gives a source to where the information had been gathered.
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Answer: D) contentedly </h3>
"contentedly" is basically another way of saying "happily"
This word modifies the verb "lives". It describes in more detail how the animal lives, rather than just simply saying "the elephant lives"
elephant = noun
endangered = adjective, since it describes the noun (elephant)