how to retrieve/print a column from string array in C#

Dear friends,
I was trying to do some task in C# but now I am stuck
first I should read some data from a text file and arrange them i form of a rows
later I just needed to show the content of row number 5
after this I had to find the average of column 4 (by converting data from string to integer)
and in the end print out the column 4

I did manage to do first 3 task but I am not able to print our the 4th column


here is my code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace HW0_DM
{
class ReadFile
{
static void Main(string[] args)
{

// Read the file lines into a string array.


string[] row = System.IO.File.ReadAllLines(@"C:\testfile.txt");

System.Console.WriteLine("Contents of testfile.txt =:");
System.Console.WriteLine("\n\tName\tSurname\tPOS\tAge\n");



foreach (string line in row)
{
Console.WriteLine("\t" + line);
}

Console.WriteLine("\nResult of row 5\n\n\t" + row[4]);



var ages =
from column in row
let a = column.Split('\t')
select Convert.ToInt32(a[3]);
var results = ages.ToArray();


//average of 4th column
double avgage = results.Average();

Console.WriteLine("\nResult of column 4\n\n\t");
Console.Write(results);



Console.Write("\n\nAverage Team Age:\t");

Console.Write(avgage + "\n");




// Keep the console window open in debug mode.
Console.WriteLine("\nPress any key to exit.");
System.Console.ReadKey();
}
}
}


HOW CAN I PRINT TO THE USER CONSOLE THE CONTENT OF COLUMN 4

here is the content of the text file:

Theo Walcott FWD 22
Tomas Rosicky CMF 24
Bacary Sagna LB 27
Gael Clichy RB 26
Abou Diaby CMF 21
Kolo Toure CB 26

You'll need to know that you can split strings (delimited by spaces with):

Code:

---

string example = "hello world blah blah 2";
string[] splitArray = example.split(new char[] { ' ' });

//Split array now has the following contents:
// splitArray[0] = hello;
// splitArray[1] = world;
// splitArray[2] = blah;
// splitArray[3] = blah;
// splitArray[4] = 2;

---

You can also parse integers with the Int32.Parse(int) method or parse doubles with Double.Parse(double) method.

That should be enough to get you there! Good luck!