Error 1 An object reference is required for the non-static field, method, or property 'temperature_conversion.Program.Celsius(int)'
<pre><code>class Program
    {
        static void Main(string[] args)
        {
            int temp;
            string choice;
            int finalTemp;
            Console.WriteLine("Enter a temperature");
            temp = Convert.ToInt16(Console.ReadLine());

            Console.WriteLine("Convert to Celsius or Fahrenheit?" + "\n" +"Enter c or f");
            choice = Console.ReadLine();

            if (choice == "c")
            {
                Celsius(temp);
            }



            Console.ReadLine();//to keep open

        } //Main End

        public int Celsius(int t)
        {
            int c;
            c = 5 / 9 * (t - 32);
            return c;
        }
    }
</code></pre>

<p>I know the answer is really simple I just can't seem to figure out what I have done wrong.</p>

<p>I'm trying to pass temp to the Celsius method.</p>
