A. Kiara wore her pink scarf to the football game, and her team won. Now she wears her pink scarf for every game.
B. Either Elliot can work to pay for college, or he can take out a
student loan and be in massive debt for the rest of his life.
C. Naveed would make a horrible junior class president because he
doesn't like the Star Warshmovies.
D. James knew that if he didn't make the soccer team, his four years
of high school would be miserable.

it might be feelings and action sorry if i am wrong

the purpose of the heading in the passage is to identify who is telling the story.

this excerpt is part of the book sugar changed the world (2010) written by marc aronson and marina budhos. as the book has been written by two people, the heading "marc" indicates that this specific excerpt is being narrated by aronson. in the fragment, marc describes his grandfather's story after hearing it from his cousin. however, there are other excerpts where budhos is the one that tells the story of her family.

aronson and budhos, who are husband and wife in real life, decided to write sugar changed the world when they found out how sugar, which had an important role in slavery and economy, changed their ancestors' lives.