What is true about this situation?

A policy-managed RAC database that hosts the ACCOUNTS service has only three instances
running rather than the usual four on a six-node cluster.
Five of the six cluster nodes are active and the sixth (RACNODE6) is down for maintenance.
You decide to check the state of the servers in the server pools to see if there are problems with

the OLTP pool to which the ACCOUNTS service has been assigned.
You used the crsctl status server-f command and see that the RACNODE3 node has
STATE=VISIBLE.
What is true about this situation?

A.
The Cluster Synchronization Services Daemon (cssd) is running and RACNODE3 is considered
to be part of the cluster, but the Cluster Ready Services Daemon (crsd) is currently not running.

B.
Both the Cluster Ready Services Daemon (crsd) and the Cluster Synchronization Service
Daemon (cssd) are running on RACNODE3, but RACNODE3 is currently being moved to another
server pool.

C.
The Cluster Ready Services Daemon (crsd) is running and RACNODE3 is considered to be a
part of the cluster, but the Cluster Synchronization Services Daemon (cssd) is currently not
running.

D.
Neither the Cluster Ready Services Daemon (crsd) nor the Cluster Synchronization Services
Daemon (cssd) is running on RACNODE3.

Explanation:
Cluster Synchronization Service daemon (CSSD)
An Oracle Clusterware component that discovers and tracks the membership state of each node
by providing a common view of membership across the cluster. CSS also monitors process health,
specifically the health of the database instance. The Global Enqueue Service Monitor (LMON), a
background process that monitors the health of the cluster database environment and registers
and de-registers from CSS.
Cluster Ready Services Daemon (CRSD)
The primary Oracle Clusterware process that performs high availability recovery and management
operations, such as maintaining OCR. Also manages application resources and runs as root user
(or by a user in the admin group on Mac OS X-based systems) and restarts automatically upon
failure
STATE=VISIBLE
Servers that have Oracle Clusterware running, but not the Cluster Ready Services daemon (crsd),
are put into the VISIBLE state. This usually indicates an intermittent issue or failure and Oracle
Clusterware trying to recover (restart) the daemon. Oracle Clusterware cannot manage resources
on servers while the servers are in this state.
Oracle Clusterware Administration and Deployment Guide