Which diagram is commonly used to illustrate the flow of program logic using shapes and arrows?

• A. Diagram
• B. Graph
• C. Flowchart
• D. Expression

Answer: (C)

Understanding how control moves through a program is exactly what a flowchart captures. A flowchart is a diagram that uses a standard set of shapes connected by arrows to show the sequence of steps, decisions, and the direction of execution. The shapes convey meaning—start/end in ovals, actions in rectangles, decisions in diamonds—while arrows show the path taken, including branches and loops. This visual arrangement makes it easy to see the order of operations, where decisions split the flow, and how the logic eventually completes.

Other terms are too broad or describe different ideas: a diagram is a general term for any schematic representation; a graph is about nodes and edges without explicit notion of program control flow; an expression is a single computational statement. Only a flowchart uses shapes plus arrows to depict the flow of program logic in a clear, step-by-step manner.