You manage a software update infrastructure by using Windows Server Update Services (WSUS) 3.0.
All client computers run Windows XP Professional Service Pack 3 (SP3).

The client computers receive Automatic Updates from the WSUS server, and they are configured to install Automatic Updates immediately.
From the Update Services console, you approve a required security update for all client computers.
You need to force a client computer to apply the required security update as soon as possible.

Which tool should you use?

A.
Secedit

B.
Wuauclt

C.
Wsusutil

D.
Gpupdate