Question

when should in-text citations be included in a paper?
when telling your own personal story
when introducing your own original thought
when citing someone elses work or ideas

Explanation:

In-text citations are required to give credit to external sources and avoid plagiarism. Personal stories and original thoughts are your own work, so no citation is needed. Only when you use or reference someone else's work, research, or ideas do you need to include an in-text citation.

Answer:

when citing someone else's work or ideas