Readers can learn by the story's tone?

Mood

Explanation:

Readers can learn about the mood of a story by looking at the tone of it. The mood refers to a literary element that evokes certain feelings in the reader. It can also be understood as the "atmosphere" of a literary piece. Tone, on the other hand, refers to the attitude of a writer towards a subject or an audience. The tone is conveyed through the choice of words of the author, which in turn conveys the mood.

animal farm, written by george orwell, is a representation of russia after the revolution that led stalin to take over power.

in this excerpt, the central idea seems to be that the animals (a representation of society), when they believe to be working for a greater good and equality, are obedient and productive. they were convinced that, after expelling the owner (jones) from the farm, they would live in harmony and be fairly treated.

as we know, the pigs become the leaders and grow more selfish and dictatorial with time. in the end, they look and act in a way so similar to humans that it is impossible to tell the difference. the ideals of equality are shattered, and the farm turns out to be worse than it was before. the animals are manipulated with false propaganda and forced to work in order to enrich the pigs.