A company has an Active Directory Domain Services (AD DS) domain. All client computers run Windows 10
Enterprise and joined to the domain.
You have the following requirements:
Ensure that files in shared network folders are available offline.
Maximize efficiency for users who connect to shared network folders from a mobile device.
You need to configure Group Policy settings to meet the requirements.
What should you do first?

A.
Enable the Enable file synchronization on costed networks policy setting.

B.
Enable the Synchronize all offline files when logging on policy settings.

C.
Enable and configure the Configure slow-link mode policy setting.

D.
Enable and configure the Specify administratively assigned Offline Files policy setting.

Explanation:
https://technet.microsoft.com/en-us/library/hh968298.aspx