B. Winnowing wind because of the repetition of 'w'
The answer to this question, is this is something that YOU have to do YOURSELF. It claims that this is your story and that you need to have some fun with it. Basically asking for people to write it for you and then using their stories to answer your question is cheating. Some people on this website are asking for you to explain the answer and help them understand, not just hand the answers to them. I'm sorry if this comes off as rude, but someone could catch you cheating.
The given passage above is actually quoted from MartIN Luther King Jr.'s "Letter From Birmingham Jail" in 1963. The author's purpose for including this sentence is that, the author wanted to convey to the reader that s<span>egregation must end immediately. Hope this answers your question.</span>