Answer: A. Because of its indirect approach, a fable about animals could deliver a political critique to a wider audience.
Explanation: The statement that best explains why George Orwell chose to write a fable using animals as the major characters is stated above. George Orwell critiqued human tendency to oppress others. The totalitarian government of the Communist Soviet Union oppressed people politically, economically and physically. By using animals to portray oppression he could reach wider audiences.