A、The air pollution is caused by the development of industry. B、The city was poor because there wasn’t much industry then. C、The

W: I am really discouraged by the lack of progress my staff is making, although I know the work will get done eventually.
M: It might get done faster if you were to give them a deadline and hold them to it.
Q: What does the man suggest the woman do?

W: I can’t bear the air pollution in this city any more. It’s getting worse and worse.
M: You said it. We’ve never had so many factories before.
Q: What does the man mean?