Context: It took us about one hour to get to her place . It took me about 30 minutes to get from one end of the airport to the other ! The weekend was filled with parties on the roof top to celebrate 4th July with fantastic fire works , going out enjoying the Denver orchestra playing in the park and eating lots of food , not to mention spending lots of money , as this was indeed the city of outdoors !

Question: What may be the reason for them being at the airport ?
Options:
0. They are picking someone up .
1. They are home from the military .
2. Visiting to celebrate July 4th .
3. None of the above choices .
Answer: 2