You are the administrator of a small network supporting Windows NT 4.0 computers. You configure a setup script to automatically upgrade Windows NT Workstation 4.0 computers to Windows 2000 Professional. When you attempt to test the process on a single computer， you receive this error message： "The specified Setup script file （path：\unattend.txt） is inaccessible or invalid. Contact your system administrator." Which action will most likely resolve this error？ （）
- AAdd the UnattendedInstall="Yes" parameter to the [Unattended] section of your Unattend.txt file
- BAdd the UnattendMode=FullUnattended parameter to the [Data] section of your Unattend.txt file
- CAdd the UnattendedInstall="Yes" parameter to the [GuiUnattended] section of your Unattend.txt file
- DAdd the UnattendMode=FullUnattended parameter to the [Unattended] section of your Unattend.txt file