What is the purpose of a topic sentence?

• A. To provide a summary of the entire essay.
• B. To introduce the conclusion of the paragraph.
• C. To state the main idea of a paragraph.
• D. To list all the evidence presented in the paragraph.

Answer: (C)

The purpose of a topic sentence is to state the main idea of a paragraph. This sentence serves as a guide for the reader, indicating what the paragraph will be about and setting the stage for the supporting details that will follow. A well-crafted topic sentence provides clarity and focus, helping readers understand the primary point being made. It essentially encapsulates the main idea in a concise way, allowing the rest of the paragraph to elaborate and provide evidence supporting that idea. This makes it easier for the reader to follow the writer's argument or narrative throughout the piece.