Saskatchewan Driver Education GDL Class 7 Learner Practice Test

When passing snow plows with warning lights in operation, drivers should slow down and maintain a safe distance behind the plow. This is because snow plows are often clearing snow and ice off the road, which can cause reduced visibility and hazardous road conditions. Speeding up or overtaking quickly can put both the driver and the snow plow operator at risk. Stopping and waiting is also not recommended as it can cause traffic to build up and disrupt the plow's operations. Maintaining the current speed may also not be safe, as it may be too fast for the current road conditions. Therefore, B is the best option as it allows drivers to pass the plow safely and efficiently.