Answer:
of on in by outside at from to
C.The narrator is the writer
D. unreliable because his point of view is irrelavant to what he is narrating
in that paragraph, the expression Mounting evidence could be a bit confusing, but it indicates that there's been reaserch about it before, and that it all points in the same direction, the more research proving the same point means the data is convincing. The answer is D.
