Read the excerpt from Animal Farm.

Apart from the disputes over the windmill, there was the question of the defense of the farm. It was fully realized that though the human beings had been defeated in the Battle of the Cowshed they might make another and more determined attempt to recapture the farm and reinstate Mr. Jones. They had all the more reason for doing so because the news of their defeat had spread across the countryside and made the animals on the neighbouring farms more restive than ever. As usual, Snowball and Napoleon were in disagreement. According to Napoleon, what the animals must do was to procure firearms and train themselves in the use of them. According to Snowball, they must send out more and more pigeons and stir up rebellion among the animals on the other farms. The one argued that if they could not defend themselves they were bound to be conquered, the other argued that if rebellions happened everywhere they would have no need to defend themselves.

What is the main conflict in this excerpt?

Snowball wants to build the windmill, but Napoleon thinks that other matters are more important.
Napoleon believes that the farm does not need to be defended if others rebel, but Snowball disagrees.
Snowball thinks that other farms are a threat, but Napoleon is more worried about Mr. Jones.
Napoleon wants the animals to protect themselves, but Snowball wants to encourage revolts elsewhere.