At a stop sign, what must a rider do before proceeding?

1. Reduce speed and continue through without stopping when no other vehicle or pedestrian is immediately visible
2. Roll slowly past the stop line when balancing is difficult, provided the rider keeps both feet on the pegs
3. Come to a complete stop and yield to traffic or pedestrians with the right-of-way
4. Stop after the rear wheel passes the stop line so the rider has the clearest possible view of cross traffic