Consider the following factors which are taken into account for computing braking distance.
1. Reaction time
2. Speed
3. Coefficient of longitudinal friction
4. Gradient
A. 1 and 3
B. 1, 2 and 4
C. 2, 3 and 4
D. 2 and 3
A. 1 and 3
B. 1, 2 and 4
C. 2, 3 and 4
D. 2 and 3