What will be the output of the following C# string? (Enter a String : BOMBAY).

static void Main(string[] args) { string Str, Revstr = ” “; int Length; Console.Write(“Enter A String : “); Str = Console.ReadLine(); Length = Str.Length – 1; while (Length >= 0) { Revstr = Revstr + Str[Length]; Length –; } Console.WriteLine(“Reverse String Is {0}”, Revstr); Console.ReadLine(); } a) BOMBA b) YABMOB c) BOMAYB d) YABMO