Your network contains an Active Directory forest named contoso.com. The forest contains two domains named
contoso.com and child.contoso.com. The forest contains two domain controllers. The domain controllers are
configured as shown in the following table.

You need to ensure that DC2 can provide authoritative responses for queries to the contoso.com namespace.
What should you do?

A.
On DC1, create a delegation.

B.
On DC1, change the replication scope of the contoso.com zone.

C.
On DC2, create a forwarder.

D.
On DC2, modify the Zone Transfers settings.

Explanation:
For DC1 to be able to provide authoritative responses to DNS queries the replication scope should be changed
accordingly so that it has the zone data for the contoso.com domain.