For this instruction of the policeman
a) the driver of the black vehicle and the driver of the green vehicle are obliged to stop the vehicle in front of the line of intersection,
b) the driver of the blue vehicle, the driver of the red vehicle and the driver of the yellow vehicle are obliged to stop the vehicle in front of the line of intersection,
c) the driver of the black vehicle and the driver of the green vehicle can continue in driving; if these drivers follow provisions on turning, they can turn
to the right or to the left.
