The current status of a given pool member is unknown – Which condition could explain that state?

A.
The member has no monitor assigned to it.

B.
The member has a monitor assigned to it and the most recent monitor was successful.

C.
The member has a monitor assigned to it and the monitor did not succeed during the most recent
timeout period.

D.
The member’s node has a monitor assigned to it and the monitor did not succeed during the most
recent timeout period.