C
Explanation: it just is
It will be first one possibly
An author's purpose is the reason that he or she is writing a piece; whether it's narrative, persuasive, expository, or informative.
Answer:
good dude .....what about you!!?
The answer is the first one, you must always cite your sources, even if you have not directly quoted them. It also adds credibility to your work (this is not the only reason, it is merely an incentive)
