Eighteen minutes later , having driven an average speed of 80 mph , we 're back at our house to collect the tickets . Forty - five minutes later , we 're at the airport . Unfortunately , we 're three minutes late for the final check - in .
Why were they late for check - in at the airport ?
Pick the best answer from the following options:
A. They were unable to leave at an earlier time .
B. They had gotten lost trying to find their flight .
C. None of the above choices .
D. They had to drive back home to get their tickets .


D