5 * 2 = 10 
In a toy store, cars are available in 5 different colours: blue, white, yellow, black and red. A car has either 2 or 4 doors. How many different version of the car are available? 

A) $$10$$ 
B) $$20$$ 
C) $$8$$ 
D) $$9$$ 
E) None of the above 