单项选择题
Your company has a single active directory forest that has an active directory domain named 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 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.
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A. 2001::68c0:9f7c:8393:c214
B. FC00::68c0:9f7c:8393:c214
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