which situation requires the addition counting principle to determine the number of possible outcomes? creating a stuffed animal when there are 6 animals, 3 fur colors, and 12 clothing themes available? renting a vehicle when there are 5 cars, 3 vans, and 10 sports utility vehicles available? printing a greeting card when there are 4 font colors, 9 font types, and 3 font sizes available? ordering a one-topping pizza when there are 3 sizes, 2 sauce flavors, and 8 toppings available?