Why should you reduce your speed when you're driving in fog? Why should you reduce your speed when you're driving in fog?

• Possible answers:

   
• A. The brakes don't work as well as they do on a clear day
• B. You could be dazzled by other people's fog lights
• C. The engine runs colder and so uses more fuel than on a clear day
• D. You won't be able to see as far ahead as you can on a clear day