Why is it illegal to use a hand-held mobile phone while you're driving?

Possible Answers:

a. It will affect your satellite navigation system

b. It will reduce your field of vision

c. It will distract your attention from the road

d. It will affect your vehicle's electronic systems

Think you know the answer to this theory test question?

Crown copyright material is reproduced under licence from the Driver and Vehicle Standards Agency, which does not accept any responsibility for the accuracy of the reproduction. The Driver and Vehicle Standards Agency does not endorse in any way any advertisement displayed on this website.