B. Hillary because it is a name of a person and a name of a person is a proper noun.
Answer:
The last one is correctly punctuated.
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The word harbingers as it is used in this excerpt is a person or thing that announces or signals the approach of another.
To be non-biased, have thorough research habits, a good work ethic, to produce the story as closely to the true events as possible (no filler or otherwise distracting language to take attention away from the topic)