Answer:
2. to give others credit for the information.
Step-by-step explanation:
Citations in papers are very important in order to show the sources of your information, its relevance and timeliness, but above all, it is a standardized way of giving credit to the original authors of the information used in your paper so that, first of all, they can earn their due credit, but, secondly, to avoid plagiarism, which is, in rough terms, passing otherĀ“s research or ideas as your own without giving them credit.