A change of gradient is:
A)A stretch of road where there is a change of direction.
B)A stretch of road where the full width of the roadway cannot be seen.
C)A place where two stretches of road with different inclinations meet.Correct
A change of gradient is the meeting of two stretches of road with different inclinations, such as the top of a hill or a dip. The main danger they present is reduced visibility. For this reason, speed must be moderated and manoeuvres such as overtaking are prohibited if there is insufficient visibility.