What is the right thing to do in this situation?

Your answer is correct because in this situation, performing an emergency braking maneuver is appropriate. According to German traffic rules, if you see a situation ahead that requires an immediate stop to avoid an accident—such as a red traffic light or a sudden obstruction—you must brake sharply and safely to prevent a collision. Continuing to drive without braking or moving to the right lane is not correct here because the traffic light is red, and you must stop. Moving towards the right lane isn’t necessary unless there is a hazard or lane closure requiring it. Emergency braking helps you respond quickly to unexpected hazards while maintaining control and safety. Remember, always pay attention to traffic signals and environmental cues to decide whether urgent braking is needed.