A customer is unable to login to the Agent Workspaces with Multimedia Channels. Given these log messages: 2018-04-23 07:

[answerhappygod]

A customer is unable to login to the Agent Workspaces with Multimedia Channels. Given these log messages:
2018-04-23 07:01:11, 358 [pool-128-thread-1] config.OcpOceanaMonitorWASProduction INFO "" [M:setOceanaHeartbeatMessage][T:null].
OceanaHeartbeatMessage.MessageText: [GigaSpaces connection OK. Database connection is Broken. ORC Rest service is reachable (http 200).
AgentControllerService Alive, Cluster Status ACTIVE] Status: [ERROR]
2018-04-24 07:02:09,853 [pool-128-thread-1] serviceability.AgentControllerStatusTask ERROR "" [M:agentControllerStatusRunnable][T:null].error in DB
Connection com.avaya.ocp.db.util.PersistenceException: java.sql.SQLException: [Cache JDBC] Communication link failure: Connection refused at com.avaya.ocp.db.util.DbConnFactoryDbcpPool.getDbConnection (DbConnFactoryDbcpPool.java:166)
What is causing these log messages?

A. Multimedia Cache database not reachable
B. The LDAP database is not reachable
C. The EDM database is not reachable
D. The ORC Rest service is not working A