When should you use your horn at a blind intersection or curve at night?

Using your horn at a blind intersection or curve at night can be an important safety measure. The correct option suggests that you should flash your headlights instead of using the horn. This is because flashing your headlights can be a more effective way to alert other drivers and pedestrians to your presence without causing unnecessary noise or panic.

At night, visibility is reduced, and a sudden honk might startle others or create confusion. Flashing headlights, on the other hand, serves as a visual warning that is more suitable for situations where sound may not be the most effective means of communication, especially when other vehicles or pedestrians might not be able to see you. This method helps convey your presence in a way that promotes safety without imposing undue stress on others on the road.

Using your horn can be appropriate in certain situations, but it is generally not recommended as a first response in low-visibility areas like blind intersections or curves at night, which is why other choices are not suitable in this context.