On this curve with reduced visibility, there are no signs prohibiting overtaking and it is marked with broken longitudinal lines. Is overtaking permitted?

A)Yes, because the road markings allow me to.
B)Yes, if I do not see vehicles in the opposite direction.
C)No, if the opposite direction is invaded.Correct
On a curve with reduced visibility, even if there is no express prohibition sign, overtaking is prohibited, unless it can be carried out without invading the opposite direction and both directions are clearly delimited.