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Question:

What is the main idea of the passage?

A The FDA has a special program for regulating dietary supplements.
Explaination

The main idea of the passage is that the Food and Drug Administration (FDA) has a special program for regulating dietary supplements. This passage has a straightforward structure: The author introduces his subject in the first paragraph and uses the four succeeding paragraphs to elaborate. All of the other possible answers are true statements from the passage but cannot be considered the main idea. One way to approach questions about the main idea is to take sentences at random from the passage and see which answer choice they could potentially support. The main idea should be strengthened or supported by most of the details from the passage.