using System;

using System.Linq;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        var bla = SuperStateForState("");

        Console.WriteLine($"State: {bla}");

    }

     public static string? SuperStateForState(string state)

    {

        if (state is null) return null;

​

        var superStates = new List<string>()

        {

            "Draft",

            "Registration",

            "Consultation"

        };

        return superStates.FirstOrDefault(state.StartsWith);

    }

}