You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. <br /> You add a ListBox to show grouped data. <br /> The ListBox is data-bound to a collection of items. Each item has the Name and State properties. <br /> You need to ensure that the ListBox meets the following requirements: <br /> Names grouped by State <br /> Names sorted in ascending order <br /> States sorted in descending order <br /> Which code fragment should you use?()<p> You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. <br /> You add a ListBox to show grouped data. <br /> The ListBox is data-bound to a collection of items. Each item has the Name and State properties. <br /> You need to ensure that the ListBox meets the following requirements: <br /> Names grouped by State <br /> Names sorted in ascending order <br /> States sorted in descendi
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