Q: Where would you find people standing in a line outside?
Options:
- bus depot
- end of line
- opera
- neighbor's house
- meeting
A: bus depot
Explain how we arrive at this answer: 
Explanation: Bus depots are located outside in an open space. People stand at a bus depot to board a bus. People have to board the bus one person at a time. In order to avoid chaos, people usually stand in a line at a bus depot.