Why should you be ready to brake now?

You selected answer 1, which is correct. According to German traffic rules, you should always be alert and ready to brake if there is a risk that someone might suddenly exit a parked vehicle, such as the driver of the brown vehicle. Car doors can open unexpectedly or pedestrians can step out from between parked vehicles, so extra caution is required in these situations. Being prepared to brake helps prevent accidents and ensures the safety of all road users in narrow city streets with parked cars. This proactive approach is a key part of defensive driving in Germany.