フリー問題

問題文

Which element of a playbook establishes when the documented workflow is supposed to begin?

選択肢

1. The verification step, which states the proof that has to be built before the workflow ends.
2. The escalation path, which states the role that has to be told before the workflow closes.
3. The rollback action, which states the change that has to be undone before the workflow repeats.
4. The trigger, which states the observable condition that has to be present before the workflow starts.