Final answer:
A circular conclusion restates the thesis and summarizes the key points of the argument to provide closure and reinforce the main idea of the essay.
Step-by-step explanation:
A conclusion that restates the thesis and shows how it has been proven is a circular conclusion. In a circular conclusion, the writer brings the essay back to the main point by rephrasing the thesis statement and summarizing the key points of the argument. This type of conclusion provides closure and reinforces the main idea of the essay.
Learn more about Circular conclusions in essays