To limit their powers so they cannot abuse them
Fox Talbot - Photographs
Isaac Singer - Sewing Machine
Etienne Lenoir - Gasoline Engine
Alfred Nobel - Dynamite
Wilhelm - X-rays
The Monroe doctrine was the US policy for ww2. It warned European powers that the US would not tolerate colonization or puppet monarchies so it’s A
Answer: The Scientific Revolution
Explanation:
The Scientific Revolution took place around 1543-1687, pre-dating the Industrial Revolution the occured from 1760-1840. The Enlightenment period happened almost the same time as the Industrial revolution, and colonialism is just a process/mindset of taking over other countries. So the Scientific Revolution makes the most sense.