Answer:
Disease, war, and possibly weakened government
Explanation:
Alfred Thayer Mahan was a United States naval officer, historian, and one of the most influential American authors of the nineteenth century.
He argued that modern navies needed repair and coaling stations, which would not be dependable if controlled by other nations. This reasoning implied a justification for American acquisition of colonies to develop port facilities throughout the world.
An increase in life expectancy
The answer is C because central means united and federalist is nationalistic so C is correct
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