A domain controller named DC4 runs Windows Server 2008 R2. DC4 is configured as a DNS server for fabrikam.com.

You install the DNS Server server role on a member server named DNS1 and then you create a standard secondary zone for fabrikam.com. You configure DC4 as the master server for the zone.

You need to ensure that DNS1 receives zone updates from DC4.

What should you do?

A.
Add the DNS1 computer account to the DNSUpdateProxy group.

B.
On DC4, modify the permissions offabrikam.com zone.

C.
On DNS1, add a conditional forwarder.

D.
On DC4, modify the zone transfer settings for the fabrikam.com zone.