Which crontab entry could be used to set the system time at regular intervals?

A.
10 * * * date $d$t$24

B.
10 * * * settime $d$t$24

C.
10 * * * date<ntpl.digex.net

D.
10 * * * /usr/sbin/runcron date <ntpl.digex.net

E.
10 * * * /usr/sbin/ntpdate ntp1.digex.net> /dev/null2>&1