I would have to say it is most likely B
If not it should be C
It is called a Building: Because the suffix 'ing' is added to verbs to make noun forms. For instance a celebrity's following. Following describes the people who follow them in a noun form.Building is a noun form of a thing that exists as the result of the act of those who built it.
C. Japan only uses renewable energy sources.
Answer:
A
Explanation:
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