Barbarously by the Nazis and severely undernourished, the prisoners have become hungry animals intent only on acquiring more food. For the dying man, reaching the cauldrons of soup represents a supreme accomplishment, and he musters up all of his energy just to reach his goal. It is tragic and very disturbing that the Nazis succeeded in reducing human beings to that base level of existence. Check out chapter 4 and you will find specific references.
I would have to say the answer is c. Just a guess though. I personally would be more formal when writing a cover letter and it does need to be proofread. <span />