class Program
    {
        static void Main(string[] args)
        {
            var tool = new Tool();
            tool.ConfigureMin();
            tool.ConfigureMax();
            tool.PrintOption();
            Console.ReadKey();
        }

    }

    public class Tool
    {
        public void ConfigureMax()
        {
            Option.Max = "Max";
        }

        public void ConfigureMin()
        {
            Option.Min = "Min";
        }

        public void PrintOption()
        {
            Console.WriteLine($"Max:{Option.Max}");
            Console.WriteLine($"Min:{Option.Min}");
        }

        private Option _option;
        public Option Option
        {
            get
            {
                if (_option == null)
                {
                    _option= new Option();
                }
                return _option;
            }
            set
            {
                _option = value;
            }
        }
    }

    public class Option
    {
        public string Max { get; set; }

        public string Min { get; set; }
    }