Answer:
A citation is a reference to a source of information used in a piece of writing.
Step-by-step explanation:
We can use the process of elimination to elimate options A and B, citations are not a kind of magazine and if we break up the word citation we get the word cite. We often hear remember to cite your sources, using this knowledge we know that cite means to show our sources used and we can eliminate option D because a list of all the references used in a piece of writing is a citation list or sources cited list. I hope this helps : )