A hosting company recently purchased an IBM p5-570 to use in their data center. The company intends to use the server to run several different client workloads. Which of the following features of the IBM p5 servers addresses the need for the isolation of workloads？（）
- AWorkload Manager
- BSupport for AIX 5.3
- CLogical partitioning
- D64-bit or 32-bit kernel support