Math help! Not understanding this question at allll! any math people out there? help please!?

Hello, im doing a math packet, but there's one question i really can't figure out: A pizza parlor offers the following toppings for a standard large pizza: pepperoni, mushroom, peppers, onions, and sausage. In addition to ordering a plain pizza, you can order any number of toppings, even all five. HOW MANY DIFFERENT KINDS OF LARGE PIZZA DO YOU HAVE TO CHOOSE FROM?