using System;

using System.Threading.Tasks;

public class Program

{

    public static void Main()

    {

        string[] a = new string[]

        {

            "A", "B", "C"

        };

        Task[] task = new Task[3];

        for (int i = 0; i < 3; i++)

        {

            task[i] = Task.Factory.StartNew(() =>

            {

                try

                {

                    Console.WriteLine(a[i]);

                }

                catch(Exception ex)

                {

                    Console.WriteLine(ex.Message);

                }

            });

        }

    }

}

​