As the excerpt opens, who are Snowball and Napoleon, and what has led them to this point? How do you know? What is Snowball arguing for, and why?

Snowball and Napoleon are two of the leaders among the pigs, who are jockeying for position. The animals have agreed that the pigs should make all policy decisions, which the other animals are to ratify. Snowball and Napoleon are in constant disagreement, and the other animals begin to take sides. The sheep support Napoleon and interrupt Snowball’s speeches by bleating, “Four legs good, two legs bad.” Snowball is the more progressive politician, promoting innovations to make the farm run more efficiently. Napoleon makes sure to oppose all of Snowball’s ideas.