You are a desktop support technician for your company. The company has a volume licensing agreement to install Windows XP Professional.

You travel to a branch office to repair a failed hard disk on a computer running Windows XP Professional. You do not bring a Windows XP Professional CD-ROM with you. You purchase a retail copy of Windows XP Professional, and you insert the CD-ROM to start the installation. During Setup, you are prompted for the product key.

You need to complete the setup of Windows XP Professional.

What should you do?

A.
Type the product key for the company’s Windows XP Professional volume license.

B.
Type the serial number that appears in the System Properties dialog box of another Windows XP Professional computer in the branch office.

C.
Type the retail product key that appears on the back of the Windows XP Professional CD-ROM case.

D.
Restart the computer and press the F5 key during Setup.