In general, fatigue in the driver...

A)promotes quick and precise movements.
B)does not affect physical condition.
C)increases reaction time.Correct
Reaction time is the time that elapses from when the driver sees an obstacle until they react. This time varies depending on the driver's psychophysical state, never due to speed or road conditions.

Although it may seem that the reaction to an obstacle or unexpected situation must be instantaneous, the average reaction time of a driver is approximately 0.75 seconds, between 0.5 and 1 second.

The most important rules to avoid having an accident due to drowsiness or fatigue are:
- If we feel tired or drowsy while driving, the most advisable thing is to stop and rest in a suitable place and sleep for about 20 or 30 minutes.
- Rest for 20 to 30 minutes every 2 hours or every 200 kilometres at most.
- Always be alert to the signs and symptoms of drowsiness or fatigue.