Which of the following procedures should be performed to minimize possible problems for a customer when updating software?（）

• A、Apply the updates without committing.
• B、Commit the new updates to be certain there is no change after the next reboot.
• C、Update one fileset at a time and test to ensure that it works before updating the next fileset.
• D、No action is necessary since the software can always be uninstalled and re-installed.