Mark the letter A, B, C or D to indicate the sentence that is closest in meaning to each of the following questions

You must never take the helmet off when you drive.

• A. 
  Helmets must be worn at all times when driving.
• B. 
  Helmets must be taken around with you when you drive.
• C. 
  Wearing helmets is never taken into consideration when driving.
• D. 
  Helmets are an optional part of you when you drive.