C# How to extract specific column from 2D array using C# : I have an array and i want to extract specific column from it, let's say the 3rd column only.

**Example:**

> 1  2  3  4  
> 
> 1  2  3  4  
> 
> 1  2  3  4 
>
> 1  2  3  4 

What is want is to extract 3rd column and display only:

> 3
> 
> 3
> 
> 3
> 
> 3

This is my code where i am able to create a dynamic array specified by the user:

    int r;
            int c;
            Console.Write("Enter number of rows: ");
            r = (int)Convert.ToInt32(Console.ReadLine());
            Console.Write("Enter number of columns: ");
            c = (int)Convert.ToInt32(Console.ReadLine());
            int[,] matrix = new int[r, c];
            
            /*Insert Values into Main Matrix
             --------------------------------------------------------------------------------*/
            for (int row = 0; row < r; row++)
            {
                for (int col = 0; col < c; col++)
                {
                    Console.Write("Enter value for matrix[{0},{1}] = ",row, col);
                    matrix[row, col] = (int)Convert.ToInt32(Console.ReadLine());
                }
            }


            /*Print and show initial Matrix
             --------------------------------------------------------------------------------*/
            Console.WriteLine("Your matrix is,");
            for (int row = 0; row < r; row++)
            {
                for (int col = 0; col < c; col++)
                {
                    Console.Write(matrix[row, col] + " ");
                }
                Console.WriteLine();
            }


            /*Fixing first 2 columns
             --------------------------------------------------------------------------------*/
            int startingMatrixCols = 2;
            Console.WriteLine("Fixed first 2 columns:");
            for (int row = 0; row < r; row++)
            {
                for (int col = 0; col < startingMatrixCols; col++)
                {
                    Console.Write(matrix[row, col] + " ");
                }
                Console.WriteLine();
            }