What is the purpose of a topic sentence in paragraphs?

What is the purpose of a topic sentence in paragraphs?

• A. To provide background information
• B. To conclude the paragraph
• C. To present supporting details
• D. To state the main idea of the paragraph

Answer: (D)

The main concept being tested is that a topic sentence signals the paragraph’s focus by stating its main idea. The topic sentence tells the reader the central point the paragraph will develop, which helps set expectations and keep the paragraph unified. The rest of the sentences then provide details, evidence, or examples to support that point. Background information, if any, is usually woven into those supporting sentences rather than in the topic sentence itself. A concluding sentence would come at the end to restate or summarize the idea, not to introduce it. For example, in a paragraph about the health benefits of daily walking, the topic sentence might state that walking daily improves cardiovascular health and mood, and the following sentences would explain how and provide evidence.

The main concept being tested is that a topic sentence signals the paragraph’s focus by stating its main idea. The topic sentence tells the reader the central point the paragraph will develop, which helps set expectations and keep the paragraph unified. The rest of the sentences then provide details, evidence, or examples to support that point. Background information, if any, is usually woven into those supporting sentences rather than in the topic sentence itself. A concluding sentence would come at the end to restate or summarize the idea, not to introduce it. For example, in a paragraph about the health benefits of daily walking, the topic sentence might state that walking daily improves cardiovascular health and mood, and the following sentences would explain how and provide evidence.