The answer is D; consult with an oracle
Railroads increased United States settlement and built up United States commerce
That is the Wheatfield With Crows by D. Vincent van Gogh
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Explanation: One of the biggest problems was that the national government had no power to impose taxes. To avoid any perception of “taxation without representation,” the Articles of Confederation allowed only state governments to levy taxes. To pay for its expenses, the national government had to request money from the states.