You are the desktop administrator for Contoso, Ltd. The company's network contains 1,000 Windows XP Professional computers, which are members of a single Active Directory domain. The computers' hard disks are formatted as NTFS. The company's software developers release a new custom application. The application uses a .dll file named AppLib.dll, which is installed in a folder named /Program Files/Contoso/OpsApp. The company's help desk technicians report that several users experience problems when they use the application because the AppLib.dll file was deleted on their client computers. The company's software developers recommend that you modify the file permissions on AppLib.dll so that users have only Read permission on the file. You need to ensure that all users have only Read permission on the AppLib.dll file on all 1,000 Windows XP Professional computers. What should you do?（） 

• A、Write a logon script that moves the AppLib.dll file into the %systemroot%/System32 folder.
• B、Ensure that Windows File Protection is enabled on all 1,000 Windows XP Professional computers.
• C、Apply the logon script to all domain user accounts. 
• D、Use the Security Configuration and Analysis console to create a new security template that modifies the file permissions on AppLib.dll. 
• E、Use Active Directory Group Policy to import and apply the template to all 1,000 Windows XP Professional computers. 
• F、Repackage the custom application in a Windows Installer package.