Which strategy best helps identify the main idea in a paragraph?

• A. Identify the overall topic sentence and look for recurring themes across sentences.
• B. Skim for random details and memorize every fact.
• C. Count the number of sentences and infer the main idea.
• D. Read only the last sentence.

Answer: (A)

The main idea is the central message the paragraph is conveying. The most reliable way to find it is to identify the topic sentence—the statement that states the paragraph’s focus—and then check how the other sentences support, illustrate, or explain that point. When you recognize the topic sentence, you can see the primary claim and then notice the recurring themes or ideas that appear across sentences as evidence or examples. This helps you summarize the paragraph in one clear idea.

Other approaches mislead you because they miss the unifying point: scanning for random details doesn’t reveal what the paragraph is mainly about, and memorizing every fact treats details as the goal rather than the evidence for the main idea. Simply counting sentences has no bearing on meaning, and reading only the last sentence can give an incomplete or misleading sense of the paragraph’s purpose. If you focus on the topic sentence and the consistent themes that follow, you capture the main idea accurately.