Your network contains two Active Directory domains named contoso.com and adatum.com. The network contains a server named Server1 that runs Windows
Server 2012. Server1 has the DNS Server server role installed. Server1 has a copy of the contoso.com DNS zone. You need to configure Server1 to resolve names
in the adatum.com domain. The solution must meet the following requirements:
* Prevent the need to change the configuration of the current name servers that host zones for adatum.com.
* Minimize Administrative effort.
Which type of zone should you create?

A.
Primary

B.
Secondary

C.
Reverse lookup

D.
Stub