When are you not allowed to sound your vehicle's horn? When are you not allowed to sound your vehicle's horn?

• Possible answers:

   
• A. Between 10.00 pm and 6.00 am in a built-up area
• B. At any time in a built-up area
• C. Between 11.30 pm and 7.00 am in a built-up area
• D. Between 11.30 pm and 6.00 am on any road