A、Unemployment. B、Family breakup. C、Mental problems. D、Drinking. B女士问男士。在街上流浪的是哪些人，男士说，有失业的，有精神病患者，还有一些酒鬼。这些信息中没有“家庭破裂者”

M: I couldn’t put up with my wife any longer. I don’t know why she usually wants to look at everything in such a negative way.
W: Maybe you should lei to get to know something about her childhood.
Q: What does the woman mean?

W: Tony, who are the street people? How did they get to be living in the street?
M: Well, some of them lost their jobs, some of them have mental problem, and some of them drink.
Q: Which of the following factors is not mentioned as a cause of becoming street people?