What communication tool should you use to provide urgent safety instructions to all passengers if available?

• A. The vehicle's horn only.
• B. Shout from the back of the bus.
• C. The public address (PA) system.
• D. Wave hand signals only.

Answer: (C)

When you need to give urgent safety instructions to every passenger, you want a method that reaches everyone clearly and quickly. The public address system does exactly that by amplifying your voice so all riders can hear your directions at once, and you can speak calmly, repeat the message if needed, and ensure the entire bus understands what to do. This is much more reliable than relying on a horn, which is meant for signaling other road users outside the bus and can startle or confuse people inside. Shouting from the back is unlikely to be heard by everyone, and hand signals alone don’t communicate the instructions to all passengers. Using the PA system ensures orderly, universal communication during urgent safety situations.