Which of the following statements is correct about the C#.NET program given below?

using System;
namespace ExamAdept
{
    class MyProgram
    {
        static void Main(string[] args)
        {
            int index = 6;
            int val = 44;
            int[] a = new int[5];
            try
            {
                a[index] = val ;
            }    
            catch(IndexOutOfRangeException e)
            {
                Console.Write("Index out of bounds ");
            }
            Console.Write("Remaining program");
        }
    }
}

In C#.NET if we do not catch the exception thrown at runtime then which of the following will catch it?

Which of the following statements is correct about an Exception?

Which of the following is NOT a .NET Exception class?