You are developing a Windows Store app that uses a webcam.
You need to be notified if new webcams are connected to the system.
Which class should you use?

A.
ManagementObjectFinder

B.
FileSystemWatcher

C.
DeviceWatcher

D.
ServiceDevice

Explanation:
http://msdn.microsoft.com/enus/library/windows/apps/windows.devices.enumeration.devicewatcher.aspx