What is the central conflict of "Amigo Brothers"? Tony and Felix must box each other to prove to the audience that they are the two best fighters in New York.
O Tony and Felix must box each other to determine who the best fighter is.
Tony and Felix must box each other while also keeping their friendship together.
O Tony and Felix must box each other even though they are not prepared to fight.

well, the bad thing is, i don't have the context.

i don't know and i don't care .

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.