If you look up "banning To Kill a Mockingbird in Highschools" you are sure to get a good article. it's a really controversial topic!
Answer:
Boxer: (Loyal) "Boxer. The cart-horse whose incredible strength, dedication, and loyalty play a key role in the early prosperity of Animal Farm"
Napoleon: (Always Looking For Opportunity) "Napoleon's incredible ability to seize an opportunity for his own purposes."
Snowball: (Idealist) "His idealism, however, leads to his downfall."
Squealer (Manipulates Others): "Squealer uses language to make the other animals disbelieve what they have seen with their own eyes and to believe the lies he tells them"
I believe that it is B, because the term vivisection isn't commonly used amongst society, or what we consider is the "normal" type of topic to talk about. The answer be clarifies what exactly the type of testing is, which is medical.