One service IP label and one volume group are assigned to a resource group in a cluster. An  Additional service IP label and volume group need to be added to the resource group.  How can this be done with the minimum disruption of the cluster？（）  

• A、 Make the changes in HACMP and synchronize the cluster.
• B、 It cannot， because changes like this cannot be made while the cluster is running.
• C、 Make the changes in HACMP and wait until the next failure for the changes to take affect.
• D、 Use the forced option to stop the cluster，make the changes，and restart cluster services.