157 On mountain roads, vehicles in the lane closest to the mountain have to yield to vehicles in other lanes. (A)O(B)X

158 Drivers must use their left turn signal to indicate their intention to pass another vehicle and maintain a distance of at least half a meter from the side of the other vehicle during passing until they have reached a safe driving distance from the vehicle. They must also use their right turn signal before returning to the original lane. (A)O(B)X