单项选择题

A. On both VIO servers, modify the inittab making chdev the last command, so that they will start during VIO server reboot.
B. On both VIO servers, change the following parameters and reboot each of them in turn    hcheck_interval =60   hcheck_mode=interactive
C. On client logical partition, modify the inittab making chdev the last command, so that they will start during client partition reboot.
D. On the client logical partition, change the following parameters and reboot the client    hcheck_interval =60   hcheck_mode=interactive