What are the steps required to perform a Preservation install on a server?（）

• A、Shutdown the server and boot it into SMS.Select SMS menu option OS Upgrade, Preservation install for the install type, and allow upgrade to run.
• B、Shut down the server and perform a network boot from a local NIM server. Select Preservation install for the install type, and allow upgrade to run.
• C、Shutdown the server and boot it into SMS.Select SMS menu option OS Upgrade, Preservation install for the install type, and allow for upgrade to run.
• D、Re-boot the server and NFS mount the bos images from a local NIM server. Run smit install. Select Preservation install for the install type, and allow upgrade to run.