Answer:
Cite.
Step-by-step explanation:
Citing is an act of giving rightful credit to the originator of an idea.
It is an act of quoting or mentioning of a book or author as an evidence in a scholarly work. By quoting or mentioning the name or the source, a researcher avoids the possibility of plagiarism. It also helps to give the praise and rightful credit to the who developed that idea or thought. Citing also helps to give a proof or evidence of what is stated is true and factual.
So, the correct answer is cite.