The answer was D, because Industrial Centers were powerful enough to supply goods for clusters of cities. Under Jefferson's presidency, crime didn't increase. Cities weren't found in just one state. What happened was he prioritized sea travel over land travel, because traveling by sea is faster (Unless you have to sail around something). Hope this helps!
During Thomas Jefferson's presidency, the primary function of cities was as ports for international trade. This reflects Jefferson's focus on economic reliance on maritime commerce rather than urban industrialization. Therefore, the correct answer is D. Mainly ports for international trade.
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