A new administrator is performing fallover testing on a two-node cluster and is concerned that the cascading resource group belonging to Node ’A’ did not reintegrate properly after the cluster was restarted on Node ’A’. A stable cluster is reported by clstat，and clRGinfo reports the resource group online on Node ’B’.  What type of configuration would cause this type of behavior？（）  

• A、 The resource group DNP has been configured.
• B、 The resource group option CWOF has been enabled.
• C、 The resource group option Inactive Takeover is set.
• D、 A resource group fallback timer has been configured.