Why elsa was granted united states citizenship before her parents.

Which is the main inference that can be drawn from adam smith's book the wealth of nations? a) for an economy to work flawlessly, it shouldn't have to serve and moral goals.b) the government must control a free-market economy, or economic problems will arise.c) a free-market economy works well only without the government's interference. d) free trade will only hurt economies and should be stopped by governments.

Before world war 1 started, austria-hungry was wary of (spain or serbia) because of border disputes

What was the effect of the industrial revolution on the working class ?