How should you use your horn to communicate with other drivers?
a.Only in emergencies
b.Lightly tap the horn to make others aware of your presence when needed
c.Use long blasts to warn distracted drivers
d.Never use your horn near residential areas
Explanation
You should use your horn to alert other road users of your presence when necessary. A light tap is usually sufficient to make drivers aware of you, such as when someone is about to merge into your lane or at blind intersections.