What should be added to this introduction? A. an explanation of the topic
B. a reason the topic is important
C. a list of supporting reasons
D. an opposing view

I would pick B, but of course it depends on the topic

Explanation:

You are already going to explain the topic throughout the paper and the supporting reasons.

don't enter the room

explanation:

or you can just ask him to move away from his house

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.