XML LINQ C#

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  4. XDocument Load (TextReader, LoadOptions) loads an XDocument from a TextReader with option
using System;
using System.IO;
using System.Linq;
using System.Xml.Linq;
using System.Collections;
using System.Collections.Generic;
public class MainClass
{
    public static void Main()
    {
        TextReader sr;
        int whiteSpaceNodes;
        sr = new StringReader("   ");
        XDocument xmlTree1 = XDocument.Load(sr, LoadOptions.None);
        sr.Close();
        whiteSpaceNodes = xmlTree1
            .Element("Root")
            .DescendantNodesAndSelf()
            .OfType()
            .Where(tNode => tNode.ToString().Trim().Length == 0)
            .Count();
        Console.WriteLine(whiteSpaceNodes);
    }
}