What factors can cause fatigue in a driver?
A)Adequate ventilation and lack of comfort.
B)Only external factors, such as the road, heavy traffic, or weather conditions.
C)Stress, worry, or excessive driving times.Correct
Driving for long periods without stopping to rest, or making inadequate stops — for example, very brief ones — is one of the main causes of fatigue at the wheel. Changes in the driver's emotional state, such as stress or worry, also cause fatigue.