Hey you!
B) and D) make no sense, so they are obviously wrong. It's either between A) and C).
I believe the correct answer is: A) Human demography.
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They used levees, which were walls used to keep water flowing where it was wanted/ needed.
Hans lippershey invented the telescope
in 1608 lippershey laid claim to a device that could magnify objects three times
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The British Parliament wanted to expand in India and wanted more control to overhaul the management that the east India company ruled in India. It failed and was replaced by the Pitts India act
Mobilization:the act of gearing up for war