Your answer is B., because it is unidentifiable, so if they don't know the source, then why cite it right? :P :D So anyways, that's why your answer is B. =)
I hope I helped! =D
To inform you on what’s going to happen and what’s happening
Answer:
I would say Yes, because all of those are ways for people to show themselves or express their thoughts, feelings, etc.
Explanation: