What is important with regard to the official registration plates?

The selected combination is correct because it encompasses all essential regulations regarding official registration plates in Germany.

1. They must be securely attached at the appropriate places to ensure they remain in position while the vehicle is in motion. Loose plates can create visibility issues or may fall off entirely, leading to fines.

2. The requirement for easy legibility ensures that other road users, law enforcement, and traffic cameras can clearly read the registration numbers. This is crucial for identification and tracking purposes.

3. The rear registration plates must be lit up in darkness to maintain visibility during nighttime or in low-light conditions. This rule ensures that the information remains accessible to other drivers and authorities, contributing to road safety.

Understanding these regulations helps ensure compliance with German traffic laws, avoiding penalties and enhancing safety on the roads.