Answer:
relating to or denoting the generation of electricity using flowing water (typically from a reservoir held behind a dam or other barrier) to drive a turbine that powers a generator.
Explanation:
so D water power
D is the sentence where it is used as an interjection. All the other answers use it as a pronoun.
Hope this helps!
This was at the begining of the age of the industrialisation, factory work was very harsh, workers had to live in a very small and crowded space, many weren't insured and didn't get enough money for working 12 or more hours a day.
Part a is most likely c
part b is most likely b