A customer needs a new Microsoft Windows 2003 Server.  They are running an application that requires substantial memory.  They would like a rack mountable system， which will support four Xeon processors with 2MB of L3 cache.  Which of the following is the minimum configuration to satisfy the customer’s requirements？（）

• A、x445 with four Xeon MP processors and 8GB of memory
• B、x445 with four Xeon MP processors and 16GB of memory in a single SMP module
• C、x445 with four Xeon DP processors and 16GB of memory in a single SMP module
• D、x445 with two SMP modules each containing two Xeon DP processors and 8GB of memory