The correct answer is: It shows how leaders blame others for the problems of the society they lead and punish them accordingly.
This interpretation reflects the author's purpose of illustrating the dynamics of power and control in a totalitarian regime. Napoleon's questioning of the pigs serves to create a scapegoat in Snowball, allowing him to deflect blame for any issues on the farm while consolidating his power through fear and violence. This mirrors historical events where leaders have shifted accountability to opponents or dissenters as a means of maintaining authority and suppressing opposition.