Company.com is considering converting from IPAT via replacement to IPAT via IP aliasing. What condition of IPAT via IP aliasing must be taken into consideration？（）

• A、 The clients must support gratuitous ARP.
• B、 The network type must support gratuitous ARP.
• C、 Additional TCP/IP interfaces must be allocated for backup in case of failure.
• D、 Using IPAT via IP aliasing will reduce the number of rotating resource groups that can be used.