Jeff: Proposed regulations concerning the use of animals in scientific experimentation would prohibit experimentat...

I didn't choose the correct answer because it talks about "all creatures."Which definitely seems out of scope since Jeff is only talking about mammals. I know he talks about mammals that we empathize with and all others, but he doesn't discuss "all creatures." I re-read the explanation many times. However, I don't think it is clearly explaining why it is okay to select this answer when it discuss all creatures and jeff is talking about mammals.