Which of the following should appear in a conclusion? (1 point)

A. an introduction

B. a closing idea

C. supporting details

D. reasons and examples

B. a closing idea

B. a closing idea

To determine which of the following should appear in a conclusion, let's break down each option:

A. An introduction: An introduction is typically found at the beginning of an essay or piece of writing, not in the conclusion. Therefore, option A is not the correct answer.

B. A closing idea: The purpose of a conclusion is to summarize the main points and provide closure to the reader. Therefore, a closing idea is a key element in a conclusion. Option B is a strong possibility.

C. Supporting details: Supporting details are usually found in the body paragraphs of an essay or piece of writing, where they provide evidence to support the main ideas. While it is important to include relevant supporting details throughout your writing, the conclusion is not the appropriate place for them. Therefore, option C is not the correct answer.

D. Reasons and examples: Just like supporting details, reasons and examples are commonly included in the body paragraphs to back up the main ideas. While the conclusion may briefly restate these reasons and examples, it is not the main focus. Therefore, option D is not the correct answer.

Based on this analysis, the correct answer is B. A closing idea. This is the element that should definitely appear in a conclusion.