单项选择题 What should you do？（）

单项选择题 You need to configure the power settings of your portable computer so that the display turns off when it is inactive and running on battery power. You also need to ensure that the power settings of the hard disk remain unaffected.  What should you do？（）

单项选择题 Your portable computer is in sleep mode. When you resume work on the portable computer， you are not prompted for a password.  You need to ensure that you are prompted for a password each time the portable computer recovers from sleep mode.  What should you do？（）