Which Group Policy preference should you configure?

Your network contains an Active Directory domain named contoso.com. All servers run Windows Server 2012 R2. Client computers run either Windows 7 or Windows 8. All of the client computers have an application named App1 installed. The domain contains a Group Policy object (GPO) named GPO1 that is applied to all of the client computers. You need to add a system variable named App1Data to all of the client computers.

Which Group Policy preference should you configure?
A . Environment
B . Ini Files
C . Data Sources
D . Services

Answer: A

Explanation:

Environment Variable preference items allow you to create, update, replace, and delete user and system environment variables or semicolon-delimited segments of the PATH variable. Before you create an Environment Variable preference item, you should review the behavior of each type of action possible with this extension.