Answer:
C. The question explores various sides of an issue.
Explanation:
In writing it's important that you understand both sides of your topic. So, if there were various sides to your research question, it would theoretically be easier to write.
Answer:
Samuel is an adept artist, having taken lessons for years
Answer:
an opinion on what may delay the technique's adoption
Explanation:
In simple terms, scrubbing the stain only made it worse. Exacerbating means to make something worse than what it already is.