You have a portable computer that runs Windows XP Professional. The computer supports Advanced Configuration and Power Interface (ACPI). You need to ensure that the computer enters Sleep Mode when you close the lid of the computer. What should you do?（） 

• A、From Control Panel, configure the Power Options. 
• B、From the System properties, configure the Data Execution Prevention settings. 
• C、From the Services console, set the Startup type for the Human Interface Devices service to Manual.
• D、From the Services console, set the Startup type for the Uninterruptable Power Supply service to Manual.