Answer:
here is your answer
hope this answers may help you
If you find it appropriate then mark it as brainlist plzzzzzzzzz
I believe the answer is A. He developed the idea of the "invisible hand" of the free market, which continually keeps the economy on course. This can be found in his book "<span>The Wealth of Nations".
</span>
Hope this Helps! :)
The radio spread news quicker across different regions in the US.
<span> D. The German use of unrestricted submarine warfare
Hope this Helps:)</span>
Answer:
invention of the magnetic compass
hope this helps! :)