A pizza shop has 18 different toppings to choose from. Today's special comes with a choice of 5 toppings, plus a choice of 3 types of crust: thin crust, regular, and deep dish crust.
How many different combinations can be made with 5 toppings and 3 crusts?
a.
25,704
c.
8568
b.
203,490
d.
270

Answer A