Correct option is A
Among the different types of sight distances, the overtaking sight distance is the longest. This distance is required to ensure that a driver has enough visibility to safely overtake another vehicle on a road without encountering oncoming traffic.
Stopping sight distance: The distance required for a driver to stop safely when an obstacle is encountered.
Illumination sight distance: The distance within which the road is visible under artificial lighting conditions.
Intersection sight distance: The distance required to see and react to vehicles or pedestrians at intersections.
Therefore, the longest sight distance is the
overtaking sight distance.
