Which gateway description corresponds to exclusive behavior?

• A. All paths must be taken
• B. Paths can occur at the same time
• C. Involve only one path and triggered by an event
• D. Used to group tasks

Answer: (C)

Gateways control how a process splits into different paths. An exclusive gateway allows only one outgoing path to be taken, based on conditions evaluated at runtime. That means the flow picks a single route, not multiple, and the choice is driven by an event or condition.

The description that fits this behavior is the one stating that only one path is involved and that the choice is triggered by an event. It captures the essence of exclusive behavior: one clear path chosen from several options. The other descriptions describe concurrent or grouped behavior (all paths taken or paths can occur at the same time) or are not about routing decisions at all, which is why they don’t describe exclusivity.