With increasing speed of the vehicle the motorcyclist’s angle of view:

This question is about the relationship between speed and a motorcyclist's angle of view. As speed increases, the angle of view decreases - answer B.

The Road Traffic Act requires you to ride at a speed that ensures control of the vehicle, and one of the reasons is exactly this narrowing of the field of view. At low speed, the eye takes in a picture of about 180 degrees: you see the pavements, entrances, people at stops. The faster you ride, the further ahead you look and the more the brain focuses on a narrow section of the road in front of you - at 100 km/h the useful field of view shrinks to a few dozen degrees, and the sides blur into a "tunnel". That is why a fast motorcyclist does not notice a car pulling out of a side road or a cyclist on the shoulder, even though they are within sight. Answers A and C contradict physiology. The conclusion: in town and at junctions, you slow down not only to brake in a shorter distance, but also to see more; on the open road, you regularly move your eyes to the sides and to the mirrors.

Legal basis: Art. 19 para. 1 of the Road Traffic Act (Prawo o ruchu drogowym)