What file is used to hold responses for automated Windows installations?

During a Windows installation, there are a number of interactive prompts for which a human must provide an answer. Fortunately, this interactive process can be automated so that the installation can complete without any human intervention. What is the name of the file that stores the information necessary to automate the Windows installation process?

A) Automate.txt

B) Installer.txt

C) Answers.txt

D) Unattend.txt