A customer has several single partition POWER5 and POWER6 processor-based systems housed in regional data centers and wants to consolidate into a single Power 770. They must minimize overall cost and the number of adapters, while ensuring a reliable infrastructure. Which solution addresses the customer requirements?（）

• A、Move the storage into a common SAN and virtualize the I/O using a single VIO Server with dual NIC connectors and dual HBAs
• B、Move the existing physical network and storage adapters to the new system and virtualize the I/O using a  single VIO Server.
• C、Move the storage into a common SAN and virtualize the I/O using dual VIO Servers, each with dual NIC  connectors and dual HBAs.
• D、Move the storage into a common SAN and virtualize the I/O using dual VIO Servers, one with dual NIC  connectors and the other with dual HBAs.