A company wants to replace an existing UNIX database server with a new application running on Microsoft SQL Server.  Sizing analysis shows that a system with at least eight Xeon MP processors and 24GB RAM will be required for the central database server. Which of the following will meet the requirements at the lowest cost？（）

A . 8-way x445 with Microsoft Windows Server 2003 Standard Edition

B . 8-way x445 with Microsoft Windows Server 2003 Datacenter Edition

C . 8-way x445 with Microsoft Windows Server 2003 Enterprise Edition

D . 16-way x445 with VMWare ESX with SMP and Windows Server 2003 Standard Edition VM