On a Debian based system, which command can be used to stop the apache2 init script
from running at boot time once the real script has been removed from /etc/init.d/?

A.
update-rc.d apache2 delete

B.
update-rc.d delete apache2

C.
update-rc.d remove apache2

D.
update-rc.d -d apache2

E.
update-rc.d apache2 remove