Question

Harry needs to write a research paper on water pollution. Which source is the most reliable source that Harry can use?

A.
a literature student’s essay on water pollution

B.
a research assistant’s blog entry about water pollution

C.
an environmental expert’s article on water pollution

D.
a history teacher’s social media post about water pollution

Answer 1

C.

an environmental expert’s article on water pollution

Answer 2

C. An environmental experts’s article on water pollution