Squealer explains to the other animals that Napoleon was never opposed to the windmill. How does this conflict propel the plot forward?

The other animals realize that Squealer and Napoleon are friends.
The other animals realize that Napoleon can be trusted.
It changes the way the other animals feel about Napoleon.
It changes the way the other animals feel about the dogs.

It changes the way the other animals feel about Napoleon. As Squealer explains that Napoleon was never opposed to the windmill, the other animals may start to doubt their previous beliefs and opinions about Napoleon. This realization may lead them to question their loyalty to him and may even ignite a desire to rebel against his leadership. This conflict propels the plot forward by creating tension and driving the animals to take action against Napoleon's oppressive rule.