At a circular traffic light showing a steady amber light, must you stop?

A)No, but it does require you to pass with caution.
B)Yes, unless it cannot be done safely.Correct
C)No, because it only warns that it is about to change to red.
A non-flashing amber light means that vehicles must stop under the same conditions as for a steady red light, unless, when it comes on, the vehicle is so close to the stopping point that it cannot stop before it under sufficiently safe conditions.