You need to create a new Active Directory partition for…

You have a server named Server1 that runs Windows Server 2016 and is configured as a domain controller.
You install the DNS Server server role on Server1.
You plan to store a DNS zone in a custom Active Directory partition.
You need to create a new Active Directory partition for the zone.
What should you use?

A.
Set-DnsServer

B.
Active Directory Sites and Services

C.
Dns.exe

D.
Dnscmd.exe

Explanation:
https://technet.microsoft.com/en-us/library/ee649181(v=ws.10).aspx