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SUBJECT 1 · ROAD RULES

Why honk the horn more often when driving in heavy fog?

A
Get ready to overtake the car ahead
B
Attract the others' attention and avoid danger.
✓
C
Urge the car in front to give way
D
Urge the car in front to speed up
ANSWER · B
In heavy fog, visibility is low. Honking alerts others that there is a car here and avoids accidents.
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