Which BPMN shape represents activities in a process?

• A. Circle
• B. Diamond
• C. Square
• D. Triangle

Answer: (C)

In BPMN, an activity (a task you perform) is shown as a rounded rectangle. The rounded corners signal that this shape represents work to be done within the process flow. This helps distinguish activities from other elements: events are circles, gateways are diamonds, and other shapes aren’t used to denote tasks in standard BPMN diagrams.

Among the options, a circle represents an event, a diamond represents a gateway, and a triangle isn’t a standard BPMN activity symbol. A square with sharp corners isn’t the BPMN convention for an activity. The key idea is that the rounded-rectangle shape is the symbol for activities, so the listed choices don’t include the correct BPMN representation.