What is a common consequence of driving while fatigued?

Driving while fatigued has a significant impact on a driver's ability to maintain focus and attention. Decreased concentration while driving means that a fatigued driver may struggle to process information from their environment, leading to slower recognition of important cues such as traffic signs, pedestrians, or changes in traffic patterns. This lack of concentration can result in difficulty in making quick decisions or responding to unexpected situations on the road.

In contrast, the other options suggest effects that typically do not come with fatigue. Improved decision-making skills and heightened awareness of surroundings are qualities that would associate with alertness and focus, characteristics that are compromised when someone is experiencing fatigue. Increased reaction times would correctly imply a delay, which aligns more closely with the diminished responsiveness often seen in tired drivers, rather than suggesting an increase in reaction capability. Overall, decreased concentration is directly linked to the dangers of driving while fatigued, making it the most accurate choice.