You have a DNS server named Server1. Server1 has a primary zone named contoso.com. Zone Aging/Scavenging is configured for the contoso.com zone. One
month ago, an Administrator removed a server named Server2 from the network. You discover that a static resource record for Server2 is present in contoso.com.
Resource records for decommissioned client computers are
removed automatically from contoso.com. You need to ensure that the static resource records for all of the servers are removed automatically from contoso.com.
What should you modify?

A.
The Security settings of the static resource records

B.
The Expires after value of contoso.com

C.
The Record time stamp value of the static resource records

D.
The time-to-live (TTL) value of the static resource records