They study nature by looking at the stars
the answer is A. Hope I could help
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William M. "Boss" Tweed of Tammany Hall would most support a patronage system.
William Magear "Boss" Tweed was an American politician. During the 19th century, he was the political boss of Tammany Hall, an influential party apparatus for the New York Democratic Party.
William M. Tweed was convicted of stealing between $ 25 million and $ 45 million from New York taxpayers through corruption. In later estimates of the corruption that Tweed was behind, the sum was in fact around 200 million USD.
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Because when people traveled along these trade routes they bought the plague with them infecting others along the way.