What must you be aware of when you see this road traffic sign?

This warning sign indicates a risk of falling rocks or landslides. When you see it, you must be cautious because stones might be lying on the roadway, which can be dangerous for traffic. It is important to avoid stopping or parking in this area, as there is a higher chance of rocks falling on parked vehicles. You should also expect that vehicles in front may brake suddenly if they notice obstacles or stones, so always keep a safe distance. Your answer is correct because all three points are important for safe driving in this situation.