Your network contains an Active Directory-integrated DNS zone named contoso.com. You discover that the zone includes DNS records for computers that were removed from the network. You need to ensure that the DNS records are deleted automatically from the zone. What should you do?

A.
From DNS Manager, set the aging properties.

B.
Create a scheduled task that runs dnslint.exe /v /d contoso.com.

C.
From DNS Manager, modify the refresh interval of the start of authority (SOA) record.

D.
Create a scheduled task that runs ipconfig.exe /flushdns.