The social insight that Orwell develops in this excerpt is: Corrupt leaders use propaganda to push their agendas.
This is the from "Animal Farm" story. In this story few animals like the Pig, Napoleon used their power to oppress the other animals on the farm. Napoleon was a corrupt leader and one of the features of corrupt leaders is the spread of propaganda.
In this excerpt, Napoleon and Snowball sent out the pigeons to spread the information that will convince the animals for farms as their farms are the best place to live.
The aim of this propaganda is to prevent them from rebelling and seeking better options. In the same manner, corrupt leaders used the misinformation to limit the minds of their subjects.
Hence, the correct answer is Option A.
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