When driving, what can cause you to miss warning signals?

The selected combination of choices 1 and 2 is correct because both loud music and distractions from a telephone call can significantly impair a driver's ability to hear warning signals. German traffic regulations emphasize the importance of being attentive to auditory cues on the road, as they are critical for safe driving.

Listening to loud music can drown out important sounds, such as sirens or warnings from other vehicles. Similarly, engaging in a distracting conversation on the phone can divert attention and reduce the driver's ability to notice vital warning signals.

Choice 3, driving at a low engine speed, is typically less impactful on a driver's ability to hear warnings. While it is still important to remain aware of one's surroundings, it does not directly contribute to missing auditory signals like the other two choices do. Thus, the inclusion of all relevant options highlights a comprehensive understanding of factors that can lead to missed safety cues on the road according to German traffic laws.