He assisted Thomas Jefferson in drafting the Declaration of Independence in 1776
This tells us that the story links up ideas and gives us an insight to our desired or fears.This is effective because from the readers point of view this will impact further knowledge on the story.
It should be either D or A bug I would go with D
I don’t quite understand to in my own words: to help us know what we don’t know
Based on the given scenario above, the answer would be option B. A secondary source. It is a secondary source since it is already seen in the magazines or printed articles and not directly from the person him/herself. Hope this answers your question.