Which of the following should appear in a conclusion?

Options:
Reasons and examples
Supporting details
A closing idea
An introduction

A closing idea

In a conclusion, a closing idea should appear.

The correct answer is "A closing idea."

To identify the components of a conclusion, it helps to understand the purpose of a conclusion. In writing, a conclusion is a section that summarizes the main points discussed in the body of the text and provides a final perspective or opinion on the topic.

In order to include a closing idea in the conclusion, you should first identify the main points or arguments presented in the body of the text. Then, provide a brief summary or synthesis of these main points to reiterate their importance. Finally, add a closing idea or statement that offers a final perspective on the topic or reinforces the main argument of the text. This closing idea should help to leave a lasting impression on the reader and tie all the ideas together.

On the other hand, "Reasons and examples" and "Supporting details" are elements typically found in the body of a text. They are used to provide evidence and support for the main argument or thesis statement. Including them in the conclusion might make it longer and more convoluted. Instead, the conclusion should focus on summarizing the main points and providing a closing idea.

Lastly, an introduction is the beginning part of a text that provides background information, sets the context, and introduces the main argument or thesis statement. The introduction is not usually found in the conclusion, as it serves a different purpose and should be placed at the beginning of the text to give the readers an overview of what to expect.