In addition to obeying speed limits, you may also want to adjust your speed because:

• A. All choices are correct
• B. Road conditions
• C. Weather
• D. Traffic conditions

Answer: (A)

The main idea is that speed should be adjusted based on conditions, not just the posted limit. Safe speed depends on traction, visibility, and the ability to stop in time. Road conditions like wet, icy, or uneven pavement reduce grip and increase braking distance, so you slow down more than the limit when conditions are poor. Weather such as rain, snow, fog, or glare from the sun can hide hazards and further reduce traction and visibility, again calling for a lower speed. Traffic conditions, including heavy traffic, unpredictable drivers, or nearby construction, change the flow and require slower speeds to maintain a safe following distance and reaction time. Since each of these factors can require adjusting your speed, the option that all choices are correct best reflects the need to modify speed for multiple real-world situations.