What text are you talking about?
Answer:
D. am .. is.. are, was, were
Answer:
D
Explanation:
This paragraph suggests that you have already listed and explained your reasons more thoroughly, and you are now reiterating your reasons with brief sentences, just so your reader remembers them. It is a conclusion.
C. over a period of six months, the turbine produced up to 211 gallons of water per day.