Final answer:
Approaching a large vehicle on slushy roads requires reducing speed, and increasing following distance, not stopping or running towards the vehicle.
Step-by-step explanation:
When approaching a large vehicle on a slush-covered roadway, it's important for safety reasons that you maintain control of your vehicle and keep a safe distance. Neither stopping and becoming stationary until it passes by, running toward the ambulance, nor running alongside it are safe or recommended actions. In poor road conditions, it is crucial to reduce your speed, increase your following distance to account for longer stopping distances, and be prepared for unexpected movements from the large vehicle caused by the slushy road conditions.