You have an answer file for a Windows 7 installation.
You need to perform an unattended installation of Windows 7 by using the answer file.
What should you do?

A.
Name the answer file autounattend.ini and save it to a USB disk. Start the computer from the Windows 7 DVD.
B.
Name the answer file unattend.txt and save it to a USB disk. Start the computer from the Windows Preinstallation Environment (Windows PE).
C.
Name the answer file autounattend.xml and save it to a USB disk. Start the computer from the Windows 7 DVD.
D.
Name the answer file unattend.xml and save it to a USB disk. Start the computer from the Windows Preinstallation Environment (Windows PE).
Explanation:
Unattended installation
You can perform an unattended installation of Windows 7 by using an installation file called Unattend.xml. These installation files store answers to the questions asked by the Setup Wizard. When the Windows 7 installation process starts, Windows checks for attached USB storage devices that have this file in their root directory. Unattended installations are suitable when you need to deploy Windows 7 to a large number of computers because you do not have to interact with them manually, responding to prompts, as the installation progresses.Building a Reference Installation
You configure your reference computer with a customized installation of Windows 7 that you then duplicate onto one or more destination computers. You can create a reference installation by using the Windows product DVD and (optionally) the answer file you created in the previous section.