You have a computer that runs Windows Vista.

The hard disk is configured as shown in the exhibit. (Refer to the Exhibit.)

You need to install Windows 7 in a dual-boot configuration.

What should you do?

Exhibit:

A.
From Windows Vista, extend Disk 0 Partition 1. Install Windows 7 in Disk 0 Partition 1.

B.
From Windows Vista, create a new partition. Install Windows 7 in Disk 0 Partition 1.

C.
Start the computer from the Windows 7 installation media. Install Windows 7 in Disk 0 Partition 1.

D.
Start the computer from the Windows 7 installation media. Install Windows 7 in the unallocated space on Disk 0.

Explanation:
The key to configuring dual-booting is ensuring that each operating system has its own partition or hard disk drive.

To dual-boot with Windows 7, you need to be able to create a new volume of at least 15 GB. Even if you have more free space available on the volume you want to shrink, you may not be able to create a volume of the appropriate size because Windows Vista may not be able to move some special types of data to a different place on the hard disk drive.

When configuring a new computer to boot between multiple operating systems, it is also necessary to install operating systems in the order that they were released. For example, if you want to boot between Windows XP and Windows 7 on a new computer, you need to install Windows XP before you install Windows 7. If you install Windows XP after Windows 7, the Windows XP installation routine cannot recognize the Windows 7 operating system installation, and the computer only boots into Windows XP. It is possible to repair the computer from this point using Windows 7 startup repair so that it dual-boots, but the simplest course of action is just to install the operating systems in the order in which they were released by Microsoft.