Which term describes a drawing that shows or explains something and usually includes labels and captions?

• A. Illustrations
• B. Diagrams
• C. Graphs
• D. Maps

Answer: (B)

A diagram is a drawing designed to explain how something works or how its parts fit together, and it typically includes labels on parts and captions to tell you what each part does. That combination of showing structure and tagging elements with labels helps you understand the relationships and steps involved.

An illustration is a drawing that helps visualize a scene or concept, but it’s not necessarily focused on labeling every part to explain a process. A graph shows data, usually with axes and numbers. A map shows locations and geographic details. So the drawing that best fits “shows or explains something and usually includes labels and captions” is a diagram.