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You should use your horn when:
A.  Another vehicle is in your way.
B.  It may help prevent a collision.
C.  Another driver makes a mistake.
Only use your horn when it is necessary to avoid collisions. Do not use your horn if a driver or bicyclist is moving slowly and you want him or her to drive faster or get out of your way.
Answer Statistics
10.18 % of our users get this question wrong.
This question's difficulty is Medium

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