Answer:
The foremost purpose of using in-text citation is to avoid the possibility of plagiarism.
Step-by-step explanation:
In-text citation is an act of citing outside source(S) in the research/informative/explanatory writing. The purpose of in-text citation is to make your paper appeal credible to the audience. It also helps you to avoid plagiarism. In-text citation also helps the audience to locate the source of information of the ideas borrowed from.
Plagiarism, in simple terms, is an act of literary theft. When one uses other's work without acknowledging it to the source, one commits plagiarism.