In which instance is the workflow supervisors group notified?

A workflow supervisors group is assigned to a workflow.

In which instance is the workflow supervisors group notified?
A . When a workflow deploys
B . When a workflow has thrown an error
C . When a workflow is taking a long time to run
D . When a delivery has changed

Answer: B

Explanation:

Reference: https://helpx.adobe.com/campaign/standard/automating/using/executing-a-workflow.html