What is the main effect of alcohol on a driver?

Answer and explanation

Correct answer: D. It slows reaction time and weakens judgement

  1. Step 1: Alcohol impairs judgement, coordination and the ability to estimate speed and distance.
Answer
It slows reaction time and weakens judgement.
Why not the others: It improves concentration on the road ahead, It sharpens the eyesight in poor light and It speeds up the driver's reactions in an emergency don't fit.

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