What is the book you are referring to?
The Great Gatsby is a 1925 novel written by American author F. Scott Fitzgerald that follows a cast of characters living in the fictional town of West and East Egg on prosperous Long Island in the summer of 1922.
B and C
Both of them correctly state the author and paragraph number the sentence can be found on.
Ethics serve as a guide to moral daily living and helps us judge whether our behavior can be justified. Ethics refers to society's sense of the right way of living our daily lives. It does this by establishing rules, principles, and values on which we can base our conduct.