The correct answer for this question is "B. It modifies the root word in a negative way." The statement that best describes the effect of adding a prefix like anti- to a root word is that it modifies the root word in a negative way.
Your purpose for writing the essay might be to persuade the reader to watch that particular TV show.
(As for the questions below, I think you have to answer those yourself based on the TV show you've chosen.)
Answer:
cruel / pitiless / without compassion
Explanation:
B is the correct answer because there are many planet which we haven't discovered yet so we can't exactly say earth is the one who is best.