A kernel engineer in your company has been moved to another department. According to departmental rules, this engineer’s user account and home directory must be deleted from all production servers. The engineer’s user name was kerneng1.
Which command-line entry deletes this account and home directory?

A.
userdel -r kerneng1

B.
userrm -r kerneng1

C.
/usr/sadm/bin/smuser delete — -n kerneng1

D.
/usr/sadm/bin/smuser delete -r kerneng1