Alcohol, drugs and fitnessQuestion 326 of 412

Cannabis may cause which problem for a driver?

  1. A longer attention span
  2. Faster reaction time
  3. Better judgment of distance
  4. Delayed response, mostly in an emergency
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Correct answer: Delayed response, mostly in an emergency

Cannabis slows reactions and makes it hard to follow what other road users do.

Source: Learn to Drive Smart (ICBC, 2026), Chapter 7, Personal strategies: Facts about drugs, page 106

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Questions last reviewed: 18 October 2026