Read the following conversation and answer the question.

M: I can't bare the air pollution in this city anymore. It is getting worse and worse.

W: You said it. We've never had so many factories before.

Question: What does the man mean? 

- The air pollution is caused by the development of industry.

- The city was poor because there wasn't much industry then.

- The woman's exaggerating the seriousness of the pollution.


The air pollution is caused by the development of industry.