A centain roller coaster has 3 cars, and a passenger is equally likely to ride in any 1 of the 3 cars each time that passenger rides the roller coaster. if a certain passenger is to ride the roller coaster 3 times, what is the probability that the passenger will ride in each of 3 cars?

A: 0

B: 1/9

C: 2/9

D: 1/3

E: 1