You're driving past a bus that's waiting at a bus stop on the other side of the road. Why should you be careful? You're driving past a bus that's waiting at a bus stop on the other side of the road. Why should you be careful?

• Possible answers:

   
• A. The bus may have broken down
• B. Pedestrians may come from behind the bus
• C. The bus may move off suddenly
• D. The bus may remain stationary