Correct answer
They are slower and less precise.
Drowsiness causes a driver to have an increased reaction time when faced with a possible unexpected event, increasing the number of seconds it takes to make decisions and leading to more mistakes due to lack of concentration while driving. In addition, under the effects of drowsiness, the movements and manoeuvres carried out by the driver will be slower and less precise, and will tend to become more automatic.
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They tend to be less automatic.
They are slower and less precise.
They are faster but less precise.
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