Your network consists of a single Active Directory domain. All servers run Windows Server 2008 R2.You have a server named Server1 that hosts shared documents. Users report extremely slow response times when they try to open the shared documents on Server1.You log on to Server1 and observe real-time data indicating that the processor is operating at 100 percent of capacity.You need to gather additional data to diagnose the cause of the problem. What should you do?（）

• A、In the Performance Monitor console, create a counter log to track processor usage.
• B、In Event Viewer, open and review the application log for Performance events.
• C、In Resource Monitor, use the Resource View to see the percentage of processor capacity used by each application.
• D、In Performance Monitor, create performance counter alert that will be triggered when processor usage exceeds 80 percent for more than five minutes on Server1.