It is important to document sources you use because _____.
uncited work only counts as opinion
plagiarism only occurs when you intentionally copy someone else's words or ideas
a reader should be able to look up what you are relying on to support your ideas
references to other works look impressive
The correct answer is C. A reader should be able to look up what you are relying on to support your ideas. If a reader does not know what you used as a basis, and you are not an expert yourself, then your essay has no confirmed information.
