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.
Answer:
it should be Weston remarked that he had never traveled on a train.
Explanation:
you forgot the space
Answer:
The majority of background radiation occurs naturally from minerals and a small fraction comes from man-made elements. Naturally occurring radioactive minerals in the ground, soil, and water produce background radiation. The human body even contains some of these naturally-occurring radioactive minerals
Explanation:
