Help! Will mark brainliest tysm

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.

Space is not completely empty. there are small particles in space. what happens when these particles come together?

Explain the significance of martin luther king jr's letter from a birmingham jail and i have a dream speech