I am guessing on this, but I think that the answer is the body.
I think it is A) persuade because the author is trying to convince the reader that soccer is the most popular sport in the world.
Answer:
It would be easy to assume that the stirring words of Martin Luther King Jr.'s “I Have a Dream” speech affected Americans most of all. His goading of a nation to live up to the democratic principles of its founders was a sharp display of America's private grief.
Explanation:
I think the answers are 10= essence 11= A 12= B 13 = C