You are a desktop support technician for your company. All client computers run Windows Vista. User Account Control has been disabled for administrators. The security team is concerned that helpdesk users are installing applications while logged onto computers with administrator credentials. Helpdesk users frequently start application installations and then leave the comptuers unattended. You need to recommend a solution to ensure computers automatically reboot after helpdesk users install applications.
What should you recommend?

A.
Install applications by using msiexec.exe

B.
Install applications by using Program and Features.

C.
Insert installation media into the optical drive and reboot the computer.

D.
Create a new file named Autounattend.xml in C:\. Add rebootafterinstall=1 to the file. Run the Windows Installer package.