You're at the front of a queue of traffic waiting to turn right into a side road. Why should you check your right-hand mirror just before turning? You're at the front of a queue of traffic waiting to turn right into a side road. Why should you check your right-hand mirror just before turning?

• Possible answers:

   
• A. To look for pedestrians about to cross
• B. To check for overtaking vehicles
• C. To make sure the side road is clear
• D. To check for emerging traffic