C would be correct since the quote draws the reader in.
Protagonist because most stories are told in the point of that person.
<span>They basically tell you the theme of the entire story, because they endure the entire there</span>
<span>Mr. Foss showed more pride in being a manager than in being a father.
Here, the paralellism is simply "in", which needs to be repeated.</span>
We listened because it can stand alone as a sentence
I would go with the second one "the transfer of microorganisms from one food or surface to another" because the definition of Contamination is- "t<span>he process by which bacteria or other microorganisms are unintentionally transferred from one substance or object to another"</span>
