Is overtaking permitted on a bend or brow of a hill with reduced visibility?

A)Yes, by moderating speed.
B)Yes, if there is no sign prohibiting it.
C)No, except if both directions are clearly delineated and the manoeuvre can be carried out without encroaching on the opposite direction.Correct
Overtaking is prohibited on bends and brows of hills with reduced visibility. However, in these cases overtaking is permitted when both directions of travel are clearly delineated and the manoeuvre can be carried out without encroaching on the zone reserved for the opposite direction.