You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. The application runs on Microsoft IIS 6.0. You create a page named oldPage.aspx.  
You need to ensure that the following requirements are met when a user attempts to access the page： 
the browser displays the URL of the oldPage.aspx page. the browser displays the page named newPage.aspx   
Which code segment should you use？（）

You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. You create a page that contains the following code fragment：  
<asp：ListBox ID="lstLanguages" AutoPostBack="true" runat="server" />   
You write the following code segment in the code-behind file for the page：  
void BindData（object sender， EventArgs e） {  
lstLanguages.DataSource = 
CultureInfo.GetCultures（CultureTypes.AllCultures）；  
lstLanguages.DataTextField = "EnglishName"； 
lstLanguages.DataBind（）；  
}  
You need to ensure that the lstLanguages ListBox control maintains the selection of the user during postback. 
Which line of code should you insert in the constructor of the page？（）