A. Yes, they should be treated the same because think of it as a human, you wouldn't want a teacher treating you differently from another student. Animals have feeling too.
B. No! This is foul, mainly because they have a life that's important as well, we wouldn't want other people testing these products on us so neither do these animals.
C. No it is not okay all animals should be treated the same.
D. No because not all animals are the same, it can work on some animals but it might not work on all.