Answer:
The correct answer to the following question will be GPO enforcement.
Explanation:
GPO enforcement : A setting that exploits on a GPO, is Enforced. Due to this setting no other higher precedence 'win' if there is a setting.
So, this GPO enforcement also works as a security and have created a group policy that sets settings of security on computers and you should make sure that in the domain of your system, the setting are perfectly applied or not.
Hence, option b. is the correct answer.