You should not drive a bus if...?

Answer: C — you have been drinking alcohol, you are upset or you are fatigued

If you have been drinking alcohol, you are upset or you are fatigued, you should not drive a bus because these factors can impair your ability to safely operate the vehicle. Wearing sunglasses or driving in the rain may impact your visibility, but they are not necessarily indications that you should not drive a bus. Not having a co-driver may also not necessarily prevent you from driving a bus, but it is always recommended to have a co-driver for long trips for safety reasons. Therefore, the most important factor to consider in this situation is your physical and mental state as it can greatly affect your ability to safely drive a bus.