Where would you find people standing in a line outside?\nOptions:\n- bus depot\n- end of line\n- opera\n- neighbor's house\n- meeting
Let's think carefully first. Step-by-step reasoning process:
User
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. So the final answer is bus depot.
Assistant