How do captions or graphs in a nonfiction text aid understanding?

• A. They provide visual support for key ideas and data.
• B. They replace text.
• C. They always summarize entire text.
• D. They distract readers.

Answer: (A)

Captions and graphs help understanding by providing visual support that ties directly to the main ideas and data in the text. A caption explains what an image, chart, or diagram shows and why it matters, helping you connect the visual to what you’re reading. Graphs turn numbers and relationships into a form your eyes can scan quickly, so you can see trends, comparisons, and changes without wading through lots of prose. Together, captions and graphs reinforce meaning, make complex information clearer, and give you quick access to important details.

They aren’t meant to replace the written text, though; they supplement it. A graph doesn’t necessarily summarize the entire argument or narrative, and a caption isn’t a substitute for reading the full explanation. Good captions and well-designed visuals don’t distract—they clarify and support what the author is conveying.