A network for a two-node cluster has been planned. The network administrator has explained that the networkdoes not support gratuitous ARP. Which of the following steps will ensure that clients are able to connect tothe cluster after a failover takes place？（）

• A、Implement heartbeating over IP aliases
• B、Implement persistent service IP addresses
• C、Implement IPAT aliasing with hardware address takeover （HWAT）
• D、Implement IPAT replacement with hardware address takeover （HWAT）