Answer:
D. Plagiarism is when someone uses another person's ideas or words and passes them off as his or her own. It involves presenting someone else's work as one's own, without giving proper credit to the original source or author. This can include copying text, ideas, images, or other forms of creative work without permission or attribution. Plagiarism is a serious academic offense and can result in consequences such as failing a course, academic probation, or even expulsion from school. It is important to always properly cite and reference sources when using information from others in order to avoid plagiarism.