You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 cluster. According to the company requirement, the failover response of the cluster has to be tested. The company assigns this task to you. On the cluster, you have to implement a manual failover.  What should you do? （） 

• A、The contents of a shared folder on the active node should be encrypted by using Encrypting File System (EFS) 
• B、You should restore a backup to the active node 
• C、You should get rid of the shared array from the active node 
• D、From the active node, you have to uplug the network cable(s)