What should you inspect to ensure the safety of your bus before driving?

Answer: B — Rider signaling devices

To ensure the safety of your bus before driving, inspecting rider signaling devices is essential. These devices, which include items like stop signals, turn signals, and any communication systems meant for passengers, are critical for communicating with both riders and other motorists. Proper functioning of these devices not only ensures that passengers can signal their needs effectively but also helps maintain overall safety on the road by indicating the bus's intentions to other drivers. This inspection is part of a broader safety protocol that aims to protect both passengers and pedestrians. Addressing such devices is crucial because, without them, the risk of accidents or confusion on the road escalates significantly. While maintaining the cleanliness of the bus, checking fuel levels, and inspecting wheels and tires also contribute to the safe operation of the vehicle, the specific concern regarding signaling devices directly impacts the safety of the passengers and the overall transport experience.