Answer choice B has absolutely no support and therefore is the least supported by default. You can't use information solely about mammalian species to prove something about non-mammalians, so good job on that.
@jyang72 said:
@Alejandro, what could be better than debating with native speaker in the courtroom with our non-english accent? That is what makes us great not weak!
That's precisely why the answer is B! We are looking for the choice that is LEAST supported, and because non-mammals are never mentioned, answer choice B is the least supported by default. We know nothing about nonmammals, so zero support.
When I wrote the test last year I wore a hoodie and so did others at my test center. It was a non issue. Although the Canadian winters are pretty cold so maybe that's why they expected people to be walking in all bundled up.
There are different non disclosed all over the world I'm fairly certain. You'd have to go on TLS and find somebody who took it at least in the same time zone I would imagine.