You have a server named Server1 that runs Windows Server 2003 Service Pack 2 (SP2). Users report that it takes a long time to open shared files on Server1. Users do not report this performance problem when they open files on other servers. You notice the following performance statistics on Server1: You need to optimize the performance of Server1. What should you do? （）

• A、Add more RAM.
• B、Upgrade the processor.
• C、Increase the size of the PageFile.
• D、Disable Data Execution Prevention (DEP).