In 1988, Mary Anderson was at the Miami airport checking in for a flight to Norway to be with her husband when she was told she wouldn't be able to check her luggage without paying a $100 surcharge . Mary had no money as her new husband had left for Norway and she had no one else to call . " I was completely desperate and tried to think which of my things I could manage without ," says Mary . As tears ran down her face , a voice behind her said , "That's okay, I'll pay for her ." Rather surprised , Mary turned around to see a tall man whom she had never seen before . He had a gentle and kind voice that was firm and decisive . Although this happened twenty years ago , Mary still remembers the authority that radiated from the man . Mary was pleased to bring her luggage to Norway and told the stranger she would give his money back . The man wrote his name and address on a piece of paper and gave it to Mary . She thanked him repeatedly . When she finally walked off towards the boarding gate, he waved goodbye to her . That man turned out to be Barack Obama . Mary paid the money back to Obama the day she joined her husband . At that time he had just finished his job as a poorly paid community worker in Chicago , and had started his law studies at Harward University . In the spring of 2006 , Mary's parents heard Obama was considering a run for President . They wrote a letter saying that they would support him. At the same time , they thanked Obama for helping their daughter 18 years earlier . And Obama replied , " I want to thank you for the lovely things you wrote about me and for reminding me of what happened at Miami airport . I'm happy I could help her then , and I'm delighted to hear that your daughter is happy in Norway . Please send her my best wishes . Sincerely , Barack Obama, United States Senator ." Why did Mary feel completely desperate ? A) She had missed the only flight to Norway . B) Her new husband abandoned her suddenly . C) She didn't have the money to buy a ticket . D) She had no money to pay for the surcharge .
A:
D