What will be the output of the following C# code?
class Program { static void Main(string[] args) { int i ; for (i = 0; i < 5; i++) { Console.WriteLine(i); } Console.ReadLine(); } } a) 0, 1, 2, 3, 4, 5 b) 0, 1, 2, 3 c) 0, 1, 2, 3, 4 d) 0, 0, 0, 0, 0