You have a server named Server1 that runs Windows Server 2003 Standard Edition Service Pack 2 (SP2). Server1 contains 4 GB of RAM and four processors. Users report that Server1 is slow. You run a performance report. The report displays the results shown in the following table. You need to improve the performance of Server1. What should you do?（）
- A Add 2 GB of RAM and enable hyper-threading.
- B Add 2 GB of RAM and upgrade to Windows Server 2003 Enterprise Edition.
- C Add two processors and enable hyper-threading.
- D Add two processors and upgrade to Windows Server 2003 Enterprise Edition.