Final answer:
Including personal opinions is not one of the three components of a summary, which should instead focus on objectively restating the author's main ideas and supporting points without the summarizer's interpretation.
Step-by-step explanation:
The component that is not one of the three typical components of a summary is A. Including personal opinions. When summarizing a work, it's important to focus on restating the author's main idea (B), including the supporting points (C), and possibly restating the author's concluding statement (D) if it encapsulates the essence of their argument. However, incorporating personal opinions goes against the objective nature of a summary, which should convey the original source's ideas rather than the summarizer's personal take on the topic. A summary is meant to be a condensed version of the original text, capturing the main points and major details without interpretation or opinion from the person summarizing.