2. In a recent advertising campaign, Applebee's Restaurant offered diners a special three-course menu for \$15.99. The menu included choices of three appetizers (mozzarella sticks, house salad, soup), four entrees (chicken, fish, beef, vegetarian pasta), and two desserts (ice cream, apple pie).
a. How many different three-course meals can be ordered from this menu? (HINT: Consider drawing a tree diagram to help visualize this sample space; or use the counting rule to find the total number of meals.)