When should you interrupt your journey?

The selected combination is correct because it emphasizes the importance of prioritizing safety while driving.

According to German traffic regulations, it is essential to interrupt your journey if your concentration is decreasing, as this can lead to dangerous situations on the road. Additionally, retrieving an item that has fallen can distract you and potentially cause an accident.

The other option regarding activating the cruise control system is not a valid reason to interrupt your journey, as it does not pertain to immediate safety concerns. Understanding these nuances is key to ensuring safe driving practices in Germany.