单选题How would a system administrator review root’s current cron jobs of the following？（）Acrontab -lBcron -l rootClscron -l rootDcat /var/cron/crontabs/root
单选题
How would a system administrator review root’s current cron jobs of the following？（）
A
crontab -l
B
cron -l root
C
lscron -l root
D
cat /var/cron/crontabs/root
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