What is the purpose of a concluding sentence in a paragraph?

• A. To introduce a new idea.
• B. To summarize the main idea and provide closure or a transition to the next idea.
• C. To repeat the thesis.
• D. To present a new claim.

Answer: (D)

Wrapping up and signaling transition is what a concluding sentence does. It reinforces the main idea of the paragraph, often by restating the point in fresh words and showing how the ideas fit together. It also provides closure, letting the reader know the paragraph is finished, and it can point forward to what comes next in the piece, creating a smooth transition to the next paragraph. It should not introduce new information or make a new claim. If a sentence tries to bring in a new idea, or merely repeats the thesis, or presents a new claim, it disrupts the flow and weakens the conclusion. A good concluding sentence leaves the reader with a clear sense of completion and connection to the broader argument.