A cluster with 10 adapters per node is converted to use IPAT address takeover vial IP aliasing.  During the conversion， the customer ran out of IP subnets in the allocated range.  What feature in HACMP can help resolve this issue？（）  

• A、 Disk based heartbeats
• B、 Heart beating via IP aliasing
• C、 IP aliases for the non-service addresses
• D、 A single subnet for all non-standby adapters