How does the author mainly show the pigs' final step in their transition from being equals to being masters? A. The pigs convince everyone that their hard work will benefit all of the animals on the farm, not just the pigs. B. The pigs begin to walk on their hind legs, wear clothes, and carry whips. C. The pigs realize that Snowball was right, and they decide to build more windmills. D. The pigs decide to do business with Mr. Jones despite his cruel treatment of the animals when he ran the farm.