You have a portable computer that runs Windows XP Professional Service Pack 2 (SP2). You need to configure the computer to generate an alert when only 25 percent of the battery life is available. What should you do?（） 

• A、From the Performance console, create a trace log.
• B、From the Performance console, create a counter log.
• C、From the Power Options, modify the Alarm Action. 
• D、From the Power Options, select the Minimal Power Management power scheme.