When riding a bicycle at night, what is required?

Answer: B — Use appropriate bike lights

Using appropriate bike lights when riding at night is essential for safety and visibility. Adequate lighting helps both the cyclist be seen by others and allows for better visibility of the road and potential hazards. In many jurisdictions, including Montana, it is legally required for cyclists to have functional front and rear lights during nighttime riding. This requirement is in place to ensure that cyclists remain safe while navigating the road, as the lack of lights can significantly increase the risk of accidents. Reflective clothing can enhance visibility, but it does not replace the need for actual lights. Riding without lights is dangerous and typically against the law, as it puts the cyclist at greater risk of being involved in a collision. Riding on sidewalks is not universally permitted; many areas have specific regulations regarding sidewalk use that may vary from the rules of the road.