Under what circumstances can you send text messages while driving your bus?

Sending text messages while driving a bus is not permissible under any circumstances due to the inherent distractions that texting introduces. When operating a bus, the driver's full attention is crucial for ensuring the safety of passengers, other road users, and complying with traffic regulations. Engaging with a mobile device diverts attention from the road, increases reaction time, and significantly raises the risk of accidents.

The other options suggest scenarios where texting might be seen as more acceptable, such as being at a red light or at low speeds. However, these situations do not eliminate the risks associated with distracted driving. Being stationary at a traffic light does not guarantee safety, as situational awareness is still essential, and low speeds do not mitigate the dangers of taking one’s attention away from driving. Therefore, the overarching rule remains that any form of distracted driving, including texting, is forbidden while driving a bus.