If there is a delay of 12 hours or more, you will receive a full 'refund' of the price of your trip. What does the word 'refund' mean in this sentence？
A.You will get a good discount.
B.You will get all the money you paid back.
C.You will get no money back.
D.You will get 50% of the money you paid back.
正确答案：You will get all the money you paid back.