Choose the best answer

You will never eat there at the weekend unless you have made a reservation.

• A. 
  Let’s make reservation at the weekend to be due of eating there.
• B. 
  You should have made a reservation if you expected to eat there at the weekend.
• C. 
  It is only possible for you to eat there at the weekend if you reserve a table in advance.
• D. 
  You may not be able to eat there if you don’t reserve a table at the weekend on purpose.