Final answer:
c) 300. Bright lights must typically be dimmed at least 500 feet before encountering an oncoming vehicle to avoid glare and promote safe driving conditions, although the given options did not include the right answer.
Step-by-step explanation:
Bright lights must be dimmed 500 feet before meeting an oncoming vehicle. While the provided options do not include the correct answer, it's important to note that specific laws can vary by state or country. However, as a general rule of thumb in many regions, it is recommended to dim your lights at a minimum distance of 500 feet when approaching an oncoming vehicle to prevent glare and ensure safety for all drivers.
When meeting an oncoming vehicle, bright lights must be dimmed to avoid blinding the driver. The general recommendation is to dim the bright lights at least 300 feet before reaching the oncoming vehicle. This distance allows the driver of the oncoming vehicle to see clearly and maintain control of their vehicle.