Which key details does Orwell include to support the central idea that Snowball uses his language skills to manipulate the other animals

B). "After much thought Snowball declared that the Seven Commandments could in effect be reduced to a single maxim, namely: 'Four legs good, two legs bad.'"

C). "A bird's wing, comrades,' he said, 'is an organ of propulsion and not of manipulation. It should therefore be regarded as a leg.'"

D). "The birds did not understand Snowball's long words, but they accepted his explanation, and all the humbler animals set to work to learn the new maxim by heart."

E). "When they had once got it by heart, the sheep developed a great liking for this maxim, and often as they lay in the field they would all start bleating 'Four legs good, two legs bad!'"

Explanation:

In the context of the novel 'Animal Farm' authored by George Orwell, the above statement reflects Snowball's use of his linguistic skills to influence other animals at the farm.

As the novel aims to satirize the Russian Revolution and comment upon the brutality, exploitation, and incompetence of the Stalin government. Orwell establishes Snowball as the representative of a white man('Leon Trotsky who was an intellectual theorist, leader, and revolutionary') in opposition to Stalin. The above excerpts show how he uses his communications skills to influence other animals at the farm in order to establish a separate authority of their own. Hence, options B, C, D, and E are the correct options.  

appeal to ethos is your answer.

they both lost a woman they loved named lenore

they believed they interracted with a talking raven

they became orphaned at a young age.