You Administer an Active Directory Domain in Which All Servers

Multiple Choice

You administer an Active Directory domain in which all servers are Microsoft Windows Server 2003, and all the clients are Microsoft Windows XP Professional. You have configured DHCP to update DNS only if the DHCP client requests. You find that the clients' A resource records are not updated in DNS when they obtain new DHCP leases. Which of the following is the most likely cause of this problem?

A) DNS is not integrated with the Active Directory.
B) DHCP server is not authorized in Active Directory.
C) The DHCP server's computer account is not a member of the DNSUpdateProxy global security group.
D) Clients are not configured to update their own host A resource records.