You support laptops that run Windows 8 Pro and are part of a workgroup. An employee is unable to start Windows Mobility

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You support laptops that run Windows 8 Pro and are part of a workgroup. An employee is unable to start Windows Mobility Center on his laptop.
You need to make it possible for the employee to use Windows Mobility Center on the laptop. What should you do?

A. Use Add features to Windows 8 to add Windows Mobility Center.
B. Use Programs and Features to repair theinstallation of Windows Mobility Center.
C. Use Local Group Policy Editor to set Turn off Windows Mobility Center to Not Configured.
D. Use Turn Windows features on or off in Programs and Features to enable Windows Mobility Center. C