The current status of a given pool is offline (red). Which condition could explain that state? Assume the descriptions below include all monitors assigned for each scenario.

A. No monitors are currently assigned to any pool, member or node.

B. The pool has a monitor assigned to it, and none of the pool members passed the test.

C. The pool has a monitor assigned to it, and only some of the pool’s members passed the test.

D. A monitor is assigned to all nodes and all nodes have passed the test. The pool’s members have no specific monitor assigned to them.