You deploy a custom Web Part named WebPart1 to a SharePoint site. WebPart1 contains the following code segment. (Line numbers are included for reference only.) 01Protected Sub Page_Load(ByVal sender…

You deploy a custom Web Part named WebPart1 to a SharePoint site. WebPart1 contains the following code segment. (Line numbers are included for reference only.) 01Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) 02 Dim site As SPSite = Nothing 03 Try 05 Dim web As SPWeb = site.OpenWeb() 06 07 ... 08 Catch 09 10 Finally 11 12 End Try 13End Sub After you deploy WebPart1, users report that the pages on the site load slowly. You retract WebPart1 from the site. Users report that the pages on the site load without delay. You need to modify the code in WebPart1 to prevent the pages from loading slowly. What should you do?