Twenty cars pass through intersection x in 4 minutes, 35 cars pass through intersection y in 5 minutes, and 36 cars pass through intersection z in 6 minutes. which intersection has the least number of cars passing through it every minute?

a. intersection x has the least number of cars passing through it every minute.

b. intersection y has the least number of cars passing through it every minute.

c. intersection z has the least number of cars passing through it every minute.

d. intersections x and y have the least number of cars passing through them every minute.

e. intersections y and z have the least number of cars passing through them every minute.