What is the fastest way to accomplish to change the innd configuration file?

The innd configuration file has been changed and it should be used as soon as possible. What is the fastest way to

accomplish that?

A.
ctlinnd kill hup

B.
kill – HUP process id

C.
ctlinnd xexec innd

D.
ctlinnd reload innd

E.
/usr/sbin/innd reload