To Cluster the Server's Public IP Address in Oracle RAC

To cluster the server's public IP address in Oracle RAC deployment process, private IP address is written to the / etc / hosts file, and Virtual IP address, cluster unique access IP address and public IP address are added. Which of the following configuration is correct? (all subnet mask are 255.255.255.0)

A) 127.0.0.1 localhost 129.22.221.200 cluster-scan 129.22.221.201 node1 129.22.221.211 node1-vip 192.168.222.211 node1-priv 129.22.221.202 node2 129.22.221.212 node2-vip 192.168.222.212 node2-priv
B) 192.168.221.212 node2-priv
C) 129.22.222.200 cluster-scan
D) 129.22.222.201 node1