What is a major cause of fatal traffic accidents in Tennessee?

Answer: B — Speeding

Speeding is a major cause of fatal traffic accidents in Tennessee as it increases the likelihood of losing control of the vehicle and reduces the effectiveness of safety measures, such as seat belts and airbags. Turning into the wrong lane, following too closely, and ignoring road signs may also contribute to accidents, but they are less likely to result in fatalities compared to speeding.