When is a parked vehicle considered to constitute a serious obstacle to traffic?
A)When the parking time exceeds 15 minutes.
B)When it takes place in a zone reserved for loading or unloading, outside the designated hours.
C)When it takes place in double file without a driver present.Correct
Double parking can result in blocking another vehicle, preventing it from joining the flow of traffic. Furthermore, this type of parking is usually carried out within the traffic stream. If the driver is not present, the vehicle will constitute a serious obstacle to traffic.
Double parking is only permitted for a stop (less than 2 minutes and the driver may not leave the vehicle) provided it does not obstruct traffic.