How can you make sure that a satellite navigation (sat nav) system doesn't distract you when you're driving? How can you make sure that a satellite navigation (sat nav) system doesn't distract you when you're driving?

• Possible answers:

   
• A. Turn it off while you're driving in built-up areas
• B. Choose a voice that you find calming
• C. Only set the destination when you're lost
• D. Set it before starting your journey