In the event of a medical emergency on the bus, what is the first step a driver should take?

Answer: A — Call for help

When faced with a medical emergency on a bus, the first step a driver should take is to call for help. This action is critical because it ensures that emergency medical personnel are alerted and can respond quickly to assist the passenger in need. Prompt communication with emergency services can significantly affect the outcome of a medical situation, especially if the passenger requires immediate medical attention. Once help is on the way, the driver can assess the situation, but the priority must always be to ensure that qualified assistance is summoned as quickly as possible. While continuing to drive might seem practical, it can exacerbate the situation if the passenger's condition worsens. Inquiring about medical history or asking the passenger to leave the bus can also be inappropriate. These actions can distract the driver from their primary responsibility of getting help and could endanger the well-being of the passenger or others on the bus.