Your company has a single active directory forest that has a domain in north America named na.contoso.com and a domain in south America named sa.contoso.com. the client computers run windows vista. You need to configure the client computes in the America office to improve the name resolution response time for resources in the south America office what should you do?（）

• A、Configure a new GPO that disables the local-link multicast name resolution feature. Apply the policy to all the client computers in the north America office.
• B、Configure a new GPO that enabled the loca-link multicast name resolution feature. Apply the policy to all the client computers in the North America office.
• C、Configure a new GPO that configures the DNS suffix search list option to sa.contoso.com, na.contoso.com. apply the policy to all client computers in the north America office.
• D、Configure the priority value for the SRV records on each of the north American domain controllers to 5.