Which of the following describes typical effects of drowsy driving?

• A. Inability to recall the last few miles traveled, having disconnected or wandering thoughts, head feels heavy, drifting from lane
• B. Increased alertness and focus
• C. Nausea and dizziness with no impairment
• D. Quick reflexes and steady lane position

Answer: (A)

When someone is drowsy behind the wheel, brain function slows and attention fades, so you start missing what’s happening on the road. This shows up as not recalling the last few miles, wandering or disconnected thoughts, a head that feels heavy, and actually drifting from your lane. Those signs reflect impaired judgment and slower processing, which make it harder to keep a steady path and respond to hazards in time. Together, they describe the typical effects of drowsy driving.

Why the other options don’t fit: being more alert and focused is the opposite of drowsiness; nausea and dizziness can occur for other reasons but aren’t the standard signs of fatigue while driving; quick reflexes and a steady lane are signs of being alert and in control, not fatigued.