After a security review, it has been decided that the sendmail process should NOT be run on one of your customer database servers.
Which command stops the service from running and persists across reboots?

A.
pkill sendmail
B.
svcadm clear sendmail
C.
svcadm restart sendmail
D.
svcadm disable sendmail
E.
/etc/init.d/sendmail stop
F.
svcadm -t disable sendmail