the answer is d, as tin is a metal and therefore can be used for many things.
It might lower the population drastically.
Hope this helps!
The Industrial Revolution transformed economies that had been based on agriculture and handicrafts into economies based on large-scale industry, mechanized manufacturing, and the factory system. New machines, new power sources, and new ways of organizing work made existing industries more productive and efficient
B. II is the territory from the Louisiana purchase
