Which detail best supports the idea that oppressive leaders use propaganda to achieve their goals? "The milk and the windfall apples (and also the main crop of apples when they ripened) should be reserved for the pigs alone."

"Snowball and Napoleon sent out flights of pigeons . . . to mingle with the animals on neighbouring farms . . . and teach them the tune of ‘Beasts of England.’"

"Now if there was one thing that the animals were completely certain of, it was that they did not want Jones back."

"By the late summer the news of what had happened on Animal Farm had spread across half the county."

"Snowball and Napoleon sent out flights of pigeons . . . to mingle with the animals on neighbouring farms . . . and teach them the tune of ‘Beasts of England.’"

Explanation:

Everyday Snowball and Napoleon sent pigeons which went to other farms to tell them the news of the rebellion as well as to teach them the words of the Animal Farm anthem, The Beasts of England.

This was a calculated attempt to show the country that animals could rule themselves by using propaganda (biased information) because the pigeons that were sent out spoke only wonderfully about the farm and this led to most believing that the farm was a paradise where animals could rule themselves and govern their own affairs even though in fact, it was a dictatorship.

the correct answer is:

this is an example of the writer telling through description rather than showing through dialogue.

sometimes writers like to explain explicitely what's happening instead of adding dialogues of the situations., which is the case in this passage,