You are developing a Windows Presentation Foundation (WPF) application that displays opportunities from List<T> named Leads, where T is a class named Lead. The Lead class contains the properties…

You are developing a Windows Presentation Foundation (WPF) application that displays opportunities from List<T> named Leads, where T is a class named Lead. The Lead class contains the properties Title and Revenue. You add a DataGrid control named dgQualifiedLeads to the MainWindow.xaml file. You set the ItemSource property of dgQualifiedLeads to Leads as follows. (Line numbers are included for reference only.) You need to ensure that CollectionViewSource is used to filter the list to display only Lead objects with revenue of more than $1,000. What should you do?