Your company has a single Active Directory forest that has an Active Directory domain
named na.contoso.com. A server named Server1 runs the DNS Server server role. You
notice stale resource records in the na.contoso.com zone. You have enabled DNS
scavenging on Server1. Three weeks later, you notice that the stale resource records
remain in na.contoso.com. You need to ensure that the stale resource records are removed
from na.contoso.com. What should you do?

A.
Stop and restart the DNS Server service on Server1.

B.
Enable DNS scavenging on the na.contoso.com zone.

C.
Run the dnscmd Server1 /AgeAllRecords command on Server1.

D.
Run the dnscmd Server1 /StartScavenging command on Server1.