Your network contains an Active Directory domain named contoso.com.

Your network contains an Active Directory domain named contoso.com.
You have three top-level organizational units (OUs) named OU1, OU2 and OU3. OU1 contains user accounts. OU2 contains the computer accounts for shared public computers. OU3 contains the computer accounts for laptops.
You have two Group Policy objects (GPOs) named GPO1 and GPO2. GPO1 is linked to OU1. GPO2 is linked to OU2.
You need to prevent the user settings in GPO1 from being applied when a user signs in to a shared public computer. If a user signs in to a laptop, the user settings in GPO1 must be applied.
A. Loopback processing
B. GPO link enforcement
C. Security Filtering
D. Inheritance blocking