The correct answer is a closing idea. In a conclusion, it is important to restate the main points or arguments made in the body of the text and provide a final thought or idea to leave a lasting impression on the reader.
The correct choice for what should appear in a conclusion is "a closing idea" (1 point). A conclusion is the final part of a piece of writing or a speech, and it serves to summarize the main points and bring the discussion to a close. It is important for the conclusion to leave a lasting impression on the reader or listener by reinforcing the main ideas and leaving them with a final thought or idea to ponder. Therefore, the inclusion of a closing idea is essential to effectively conclude the discussion. To arrive at this answer, one can use their understanding of the purpose and function of a conclusion in writing or public speaking.