What role do topic sentences serve in understanding a passage?

• A. They define the paragraph’s main idea
• B. They provide a detailed explanation of every point
• C. They summarize the entire passage
• D. They are not important for comprehension

Answer: (A)

Topic sentences play a crucial role in comprehension by clearly defining the main idea of a paragraph. This helps readers quickly grasp the central theme or argument being presented, allowing them to follow the flow of the passage more easily. A well-crafted topic sentence sets the stage for the supporting details and evidence that follow, making it easier to understand how each part contributes to the overall argument or message. By signaling the focus of the paragraph, topic sentences guide readers in organizing their thoughts and retaining information as they engage with the text. This clarity enhances overall comprehension and aids in analyzing the passage effectively.