Does the speed at which the accident occurred have an impact on its consequences?

The question is about the effect of the speed at which an accident happened on its consequences. Yes, speed affects the consequences of every accident - answer C.

The Road Traffic Act requires you to drive at a speed that ensures control of the vehicle and is adjusted to the conditions, because speed decides not only whether an accident happens, but also how it ends. The energy that is turned into damage and injuries in a collision grows with the square of the speed: an impact at 100 km/h has four times as much energy as at 50 km/h, not twice as much. A pedestrian hit at 30 km/h has a good chance of surviving, at 50 km/h only about half do, at 70 km/h almost none. So answer A is wrong. Answer B is wrong, because this relationship applies to every type of incident - a side collision, a rear-end collision, hitting a tree, a rollover or hitting a pedestrian - and not only to a head-on collision. Even a few kilometres per hour less clearly reduces the force of the impact, which is why braking until the last moment makes sense when a collision can no longer be avoided.

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