$$3\times3=9$$ 
Nick wants to bake a cake that consists of only $$1$$ flavour and $$1$$ topping. He gets to choose from $$3$$ different flavours and $$3$$ different toppings. How many different kinds of cake can he make? 
[a] $$3$$ 
[b] $$6$$ 
[c] $$9$$ 
[d] $$12$$ 
[e] None of the above 