During the installation of a cluster， the non-IP network failed. The cause was a connector that was Not properly secured. The customer wants a better notification method in the event that the non-IP network fails in the future. How could customization of the cluster be accomplished？（）

A. Customize the node up event script to send an email to the operator.
B. Have HACMP send mail when the non-IP network fails by customizing the RG_MMOVE event script.
Change the network module to be slower so that a temporary failure of the non-IP network would not report an error.
D. Use snmp or clinfo to monitor the status of the non-IP network and dispatch some type of warning message.