问题详情

The writer said that Chicago was a very big city. That means ______.
A．it was possible(可能的)for him to happen to know the stranger"s friend
B．he didn"t want to find the stranger"s friend
C．it was impossible to find the stranger"s friend
D．he didn"t know the stranger"s friend请帮忙给出正确答案和分析，谢谢！