When stopped on the side of a divided highway, how should flags or reflectors be placed?

The correct choice involves placing flags or reflectors strategically to ensure that your vehicle is visible to oncoming traffic, especially under conditions where visibility might be compromised. In this case, placing one flag 10 feet behind the vehicle, one 100 feet behind, and one 200 feet behind creates a progressive warning to approaching drivers, alerting them to the presence of a vehicle stopped on the side of the road.

This setup addresses the critical need for safety by providing multiple points of awareness for drivers. The shortest flag serves immediate notice, while the longer distances give ample time for drivers to react, especially at higher speeds that might be typical on a divided highway. This method significantly enhances the visibility of the stopped vehicle, thus reducing the risk of accidents.

Additionally, the other options do not provide an effective or standard warning setup for a broken-down vehicle. For instance, having flags only positioned a very short distance behind or in front of the vehicle might not be sufficient for warning approaching traffic, especially in cases of high-speed travel on divided highways. Proper placement ensures maximum visibility, which is essential for the safety of all road users.