Your speed must be based on:

• Traffic conditions, such as the number of vehicles on the road and their speed
• Road conditions, such as whether the road is rough or smooth and the width of the roadway
• Weather conditions, such as rain, snow, dust, and fog, which lower visibility
• All of the above
  Explanation:

  "Your speed must be based on the following: 1. Traffic conditions – the number of vehicles on the road and their speed. 2. Road conditions – is the road surface rough or smooth? How much water, ice, or snow is on the road surface? How wide is the roadway? 3. Weather conditions and visibility – situations that make it hard to see, including rain, snow, ice, dust, and wind."