What in the conduct of the blue vehicle is improper?

1. Correct answer: The driver of the blue vehicle is not driving in the right-hand lane.
2. Although it is cloudy the driver has not turned on his lights.
3. the driver of the blue vehicle has not turned on his left indicator.
4. The driver in the blue vehicle is not keeping a sfe braking distance

WhyThe blue car is driving in the left lane although the right one is free. It should be in the right lane.