What can you do to help protect the environment?

The selected combination of answers is correct because they highlight environmentally friendly driving practices.

1. Driving short distances helps reduce fuel consumption and lower emissions, which is crucial for reducing air pollution and conserving energy. This aligns with German traffic policies aimed at promoting sustainable transport.

2. Driving at flat-out speed is not environmentally friendly; in fact, it typically wastes fuel and increases emissions. Therefore, this option should not be included if the goal is to protect the environment.

3. Driving in crowded city centres can contribute to increased pollution due to idling and traffic congestion. However, this choice can be seen in the context of the need for low-emission zones in many German cities, which aim to protect urban air quality.

Understanding these elements is important to properly assess how different driving behaviors impact the environment and adhere to the regulations set out to promote eco-friendly transportation in Germany.