You administer a SQL Server 2008 infrastructure. An instance runs on a computer that has eight quad-core processors and 128-GB RAM. Four different applications use the instance. The instance experiences a low number of CXPACKET waits. The instance also experiences a large number of lazy writer waits. You need to optimize the performance of the instance. What should you do?（）

• A、Configure the Resource Governor. 
• B、Configure the Windows System Resource Manager. 
• C、Configure software non-uniform memory access (soft-NUMA).
• D、Configure an increase in the maximum degree of parallelism option.