They have a division of specialization. I'm pretty sure thats the answer.
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A is wrong, as if you check, John Adams' presidency was from 1797 to 1801--only a single four year term.
B is true. Since George Washington made the Proclomation of Neutrality before him, John Adams ended up having to uphold it. There's a famous debacle called the <em>XYZ </em><em>Affair</em> where US diplomats were stopped from talking to the French foreign minister by his agents unless they paid a hefty bribe. (whose names were replaced with X, Y, and Z when Adams released the documents so as to avoid involvement in French wars)
C is wrong. John Adams' wife, Abigail Adams, had been married to Adams for over thirty <em>years</em> before he took office.
D <em />is wrong. The Louisiana Purchase was in 1803, during which the third president, Thomas Jefferson, was in office.
Because they are separated from the rest of the world
The farmers produced more food than needed and were able to feed people like the craft workers and traders
