Read the excerpt from chapter 6 of Animal Farm. Every Monday Mr. Whymper visited the farm as had been arranged. He was a sly-looking little man with side whiskers, a solicitor in a very small way of business, but sharp enough to have realized earlier than anyone else that Animal Farm would need a broker and that the commissions would be worth having.

Which statement best explains why Mr. Whymper serves as an intermediary for Animal Farm?

He is motivated by a desire for power.
He is motivated by financial success.
He is motivated by a sense of duty.
He is motivated by a desire to help others.