How is tone used in an argument? o a. to make the audience aware of any bias the writer may have about the subject b. to show the author's attitude toward a subject o c. to establish the writer's credibility and show that he or she is an expert on the subject o d. to make the audience believe the writer is on their side and supports their beliefs previous

B. To show the author's attitude toward a subject.

normally working animals are domesticated and ruled by a master, a domesticator (tamer), to perform basic and important functions on a farm, for example. the value used in this context is animal labor in exchange for food. it is not so much a contrast to the story told by napoleon and the pigs, since the animals of that particular farm also performed functions on the farm through domestication. the only thing is that in this case, who rules them is a pig, also an animal, but very respected, to whom the other animals lent him submission. that's about a strong relationship of dependency between animal and owner.