If the average center to center spacing of vehicles is 20 meters, then the basic capacity of a traffic lane at a speed of 50 kmph is$?

If the average center to center spacing of vehicles is 20 meters, then

1.	If the average center to center spacing of vehicles is 20 meters, then the basic capacity of a traffic lane at a speed of 50 kmph is$?
A.	2500 vehicles per day
B.	2000 vehicles per hour
C.	2500 vehicles per hour
D.	1000 vehicles per hour
Answer» D. 1000 vehicles per hour