How does orwell use squealer's explanation to support his purpose?

squealer's explanation of napoleon's tactics is representative of a dictator who reverses policies and lies about his reasons.
squealer's explanation of napoleon's tactics is meant to shed light on why it is often necessary for dictators to lie to their people.
squealer's explanation of napoleon's tactics demonstrates a connection between napoleon and squealer that was not previously clear.
squealer's explanation of napoleon's tactics reveals a connection with stalin's intent to do what was right for his people.