Answer:
C. To prove that you read the book or article closely
Explanation:
When you use a quote from a book or article, or whatever you're reading, that shows that you read the book or whatever, which is what option C is saying.
How did the musician become famous, where is he from, what influenced him, when growing up what did he listen to, when did he get into what they are doing now.
Hello~
They most likely wanted slaves to be afraid so they did not collect the courage to escape or disobey. With low self esteem they might not try anything.
Good luck!
Ary~