Yesterday's school lunch featured an Italian theme. Students had to choose one entree from among lasagna, spaghetti, and raviolis, one side dish of either broccoli or green beans, and one drink chosen from cola, lemon-lime, orange drink, and root beer. How many meals are there to choose from if you must choose entree, side dish, and drink?
1. 24
2. 9
3. 324
4. 20