A system administrator has just migrated a system from AIX V.4 x to Aix V5.x. The system is up and running and appears to be functioning properly. The following error message was received when running lppchk -v bos.rte V =4 R is >4 bos.rte V>5 bos.rte not installed. 5.1.0 lslpp -l | grep bos.rte shows 5.1.0 Which of the following options is the most likely solution to this problem?（）

• A、bos.rte is corrupted and needs to be reinstalled.
• B、The system administration needs to reboot the system.
• C、The /root part of bos.rte was installed but not the user part. Reinstall the missing software.
• D、The update CD needs to be applied with the smitty update_all command.