In which case does parking seriously disrupt traffic?

A)When the distance between the vehicle and the opposite edge of the carriageway is less than 5 metres.
B)In a zone reserved for loading and unloading, outside its hours of use.
C)When it is carried out on central reservations, dividers, islands or other traffic channelling elements.Correct
Parking will seriously disrupt traffic when it takes place in a loading and unloading zone during its hours of use, when it is carried out in a double row without the driver present, when it is carried out on central reservations, dividers, islands or other traffic channelling elements, when the distance between the vehicle and the opposite edge of the carriageway or a continuous longitudinal marking is less than 3 metres, or when it does not allow other vehicles to pass, among other locations.