A computer that runs Windows XP has one basic disk containing a single partition. The partition has 30 GB of free space. The hard disk has 5 GB of unallocated space.

You need to install Windows 7 in a dual-boot configuration. Windows 7 must not be installed in a virtual hard disk (VHD).

What should you do first?

A.
Compress the hard drive.

B.
Extend the primary partition.

C.
Share the hard drive.

D.
Shrink the primary partition.