How many first aid units are required for a school bus with 17-42 passengers?

Answer: B — 16 units

A school bus designed to carry 17-42 passengers is required to maintain a proper level of first aid readiness, which is essential for the safety and well-being of the children it transports. The correct number of first aid units required for this capacity is 16. This requirement is based on safety regulations that outline the necessary preparedness for potential medical emergencies that may arise during transit. The number of first aid units corresponds to the passenger capacity, ensuring that there are enough supplies readily available to address various emergency situations involving the passengers. Having 16 first aid units provides a comprehensive response capability, covering the potential needs of the children on board in case of minor injuries or health issues. Understanding this requirement is crucial for school bus drivers and operators to ensure compliance with health and safety regulations, effectively enhancing the safety of student transportation.