If b is the wheel track of a vehicle and h is the height of centre of gravity above road surface, then to avoid overturning and lateral skidding on a horizontal curve, the centrifugal ratio should always be

a) less than b/2h and greater than co-efficient of lateral friction
b) less than b/2h and also less than co-efficient of lateral friction
c) greater than b/2h and less than co-efficient of lateral friction
d) greater than b/2h and also greater than coefficient of lateral friction
Ans: b