Which phrase correctly describes the african region called the sahel?

a.
the vast seasonal wetland that covers the okavango river delta

b.
the wide area of dry land that borders the southern edge of the sahara

c.
the densely forested area that comprises the congo river basin

d.
the sub-tropical grassland that lies in the great rift valley

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.