You are the desktop administrator for your company. You need to upgrade a Windows 98 computer to Windows XP Professional. Windows 98 is installed in a folder named C:/Win98.  You need to ensure that the computer's applications and settings are retained after the upgrade. You insert the Windows XP Professional CD-ROM into the computer and restart the computer. The text-based portion of Setup appears. The text on the screen states that Windows XP Professional will be installed in a folder named C:/Windows, not in the C:/Win98 folder.  You need to ensure that Windows XP Professional upgrades the existing Windows 98 installation. What should you do?（）

• A、Rename the C:/Win98 folder to C:/Windows. 
• B、Modify the installation settings in the text-based portion of Setup so that Windows XP Professional is installed in the C:/Win98 folder. 
• C、Restart the computer by using Windows 98. Then insert the Windows XP Professional CD-ROM into the computer and run Setup from the CD-ROM. 
• D、Use the Windows XP Professional CD-ROM to create a set of Setup floppy disks. Restart the computer by using the first floppy disk in the set to launch Setup.