What is a common sign of driver fatigue?

Answer: B — Difficulty focusing, frequent blinking, or yawning

Difficulty focusing, frequent blinking, or yawning are key indicators of driver fatigue. When a driver is fatigued, their body shows signs of tiredness, making it harder to concentrate on the road. Frequent blinking may occur as a result of tired eyes, and yawning is a physiological response to sleepiness. These symptoms indicate that the driver may not be fully aware of their surroundings, which increases the risk of accidents. In contrast, increased speed and aggression in driving might reflect a more reckless behavior rather than straightforward fatigue. While some might think checking mirrors often could signify vigilance, in the context of fatigue, it may not align with the typical signs. High levels of alertness are the opposite of driver fatigue, as fatigue typically impairs one’s ability to remain alert and respond effectively to driving situations. Understanding these signs is crucial for ensuring road safety and recognizing when it is necessary to take a break and avoid driving when fatigued.