You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. You create a page that contains the following control. You write the following code segment in the code-behind file for the page. Private Sub LoadDate（ByVal sender As Object， _ByVal e As EventArgs） If IsPostBack Then calBegin.SelectedDate = _ DirectCast（ViewState（"date"）， DateTime） End If End Sub Private Sub SaveDate（ByVal sender As Object， _ByVal e As EventArgs） ViewState（"date"） = calBegin.SelectedDate End Sub You need to ensure that the calBegin Calendar control maintains the selected date. Which code segment should you insert in the constructor of the page？ （）
- AA
- BB
- CC
- DD