Certkiller .com boosts a two-node Network Load Balancing cluster which is called web. CK1 .com. The purpose of this cluster is to provide load balancing and high availability of the intranet website only. With monitoring the cluster， you discover that the users can view the Network Load Balancing cluster in their Network Neighborhood and they can use it to connect to various services by using the name web. CK1 .com.  You also discover that there is only one port rule configured for Network Load Balancing cluster.  You have to configure web. CK1 .com NLB cluster to accept HTTP traffic only.  Which two actions should you perform to achieve this objective（）

• A、Create a new rule for TCP port 80 by using the Network Load Balancing Cluster console
• B、Run the wlbs disable command on the cluster nodes
• C、Assign a unique port rule for NLB cluster by using the NLB Cluster console
• D、Delete the default port rules through Network Load Balancing Cluster console