public enum UNIT { SCISSORS, PAPER, ROCK }
public static UNIT theAIChosenOption;
public static void Main()
Random rnd = new System.Random();
int AISelect = rnd.Next(0, 3);
theAIChosenOption = UNIT.SCISSORS;
theAIChosenOption = UNIT.PAPER;
theAIChosenOption = UNIT.ROCK;
Console.WriteLine(theAIChosenOption);