Here is the full excerpt of this question: <span>The invisible hand has guided all nations around the world to this prosperity. In what field do researchers focus on investigating the phenomena described above
The answer is :Economics
Invisble hands in this context refers to the power of supply and demand that exist within the market. People who managed to develop a product/services that answer the needs of the market will be most likely to receive the prosperity from the consumers' purchase.
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Factor contributing to the growing conflict over slavery from the 1820s through the 1850s was predominately territorial expansion. The conflict was over whether the people in the new territories should be able to have slaves in the first place.
I don’t know but it was probably because trading is easier than toiling and farming. There are many risks to farmings than there was in trading.
On the paper miss I think it would be A