Company.com wishes to use IPAT via IP replacement in a two-node mutual cluster. Each node  has two Ethernet 10/100/1000 adapters. Throughout the planning session，the customer has asked questions about subnet and VLAN requirements for the intended network topology.  Which of the following best describes the network requirements？（）  

• A、 The service IP addresses must be on a separate subnet and VLAN.
• B、 The non-service and service IP addresses must be on the same subnet and on the same VLAN.
• C、 All interfaces on a node must be in different subnets. All subnets must be on the same VLAN. 
• D、 One non-service and one service IP address must be on the same logical subnet. All interfaces must be on the same VLAN.