问题：

[单选]

You are the administrator of ExamSheet's network. 
The software department is preparing to rewrite an accounting application so that it will run on 
Windows 2000 Professional computers. All of the computers in the software department currently use Windows 98. You plan to configure the computers in the software department so that users can use both Windows 98 and Windows 2000 Professional during the project. You want to ensure that users in the software department can access all of the files on their computers while using operating system. 
What should you do?（）

A . Create and format an NTFS volume. Install Windows 2000 Professional on the volume. Create a primary partition in the remaining disk space and format the volume using the FAT32 file system.Reinstall Windows 98 on the new primary partition. 
B . Create and format an NTFS volume. Install Windows 2000 Professional on the volume. Create an extended partition in the remaining disk space and format the volume using the FAT32 file system. Reinstall Windows 98 on the new extended partition. 
C . Create and format and extended partition. Create a logical drive within the extended partition and format the drive with the FAT32 file system. Install Windows 2000 Professional on the new partition. 
D . Create and format an extended partition. Create a logical drive within the extended partition and format the drive with the NTFS file system. Install Windows 2000 Professional on the new partition.