单选题An administrator attempted to run a sar -u report and received the following error： sar： 0551-201 Cannot open /var/adm/sa/sa12. Which of the following should be scheduled in adm’s crontab to enable sar reporting（）A sarB sa1C vmoD iostat
题目
单选题
An administrator attempted to run a sar -u report and received the following error： sar： 0551-201 Cannot open /var/adm/sa/sa12. Which of the following should be scheduled in adm’s crontab to enable sar reporting（）
A
sar
B
sa1
C
vmo
D
iostat