public static void Main() { Frog[] frogs = new Frog[5]; frogs[0] = new Frog("Kermit", 5, 'M'); frogs[1] = new Frog("Piggy", 8, 'F'); frogs[2] = new Frog("Cookie Monster", 3, 'F'); frogs[3] = new Frog("Oscar the grouch", 15, 'M'); frogs[4] = new Frog("Kermit's double", 5, 'M'); Dog[] dogs = new Dog[5]; dogs[0] = new Dog("Rex", 1, 'M'); dogs[1] = new Dog("Sergeant Dirty", 6, 'F'); dogs[2] = new Dog("Lucky", 7, 'F'); dogs[3] = new Dog("Unlucky", 2, 'M'); dogs[4] = new Dog("Tramp", 4, 'M'); Cat[] cats = new Cat[5]; cats[0] = new Cat("Tom", 6, 'M'); cats[1] = new Kitten("Princess", 1); cats[2] = new Cat("Jerry", 2, 'F'); cats[3] = new Tomcat("Behemoth", 1); cats[4] = new Cat("Pluto", 7, 'M'); Console.WriteLine("The average age of the frogs is " + Animal.AverageAge(frogs)); Console.WriteLine("The average age of the dogs is " + Animal.AverageAge(dogs)); Console.WriteLine("The average age of the cats is " + Animal.AverageAge(cats)); }