You are driving on a multi-lane undivided highway. On the opposite side of the highway as you approach, you see children waiting as a school bus opens its door with red flashing lights activated and visual sign operating. What should you do? Sound your vehicles horn at regular intervals to alert the children so they don't cross Maintain a safe speed and proceed with caution at a reduced speed Stop and wait until its lights and sign are no longer operating before proceeding Move into the lane furthest from the bus, creating a safety buffer, proceed with caution