What is a common consequence of driving while fatigued?

Answer: C — Reduced decision-making ability.

Driving while fatigued significantly impacts a driver's cognitive functioning, specifically reducing their decision-making ability. When a person is tired, their brain does not process information as efficiently, leading to slower thought processes and impaired judgment. This can result in an inability to assess situations correctly, such as underestimating risks or making poor choices regarding speed, following distance, and maneuvering. For instance, a fatigued driver might not recognize a stop sign in time or may misjudge the appropriate response to a sudden obstacle on the road. This diminished capacity for making sound decisions can increase the likelihood of accidents, making it crucial for drivers to prioritize alertness and rest before getting behind the wheel.