A blocked item should always count against a Work In Progress limit

$($choose the best answer$)$

A$.$ Never. Blocked items are usually the result of external dependencies that the Kanban system members have no control over their work should not be impaired because of that.

B$.$ Only if your Definition of Workflow contains a blocked column and the blocked item is in the blocked column.

C$.$ It depends. The Kanban system members should follow whatever policies they have on how to handle blocked items.

D$.$ Always. We want to make sure the team feels the pain of the blocked item so that it gets cleared quickly.