the answer is (A) the announcement of the Athenian defeat at the battle of the Marathon
B. The northeast.
The northeast had more factories and more railroads than any other part of the country at that time.
<span>The correct answer is A. Articles of Confederation. This was the initial plan used in creating the union and it eventually became the US constitution when the Congress met in order to debate how it can be changed in improved, but in the end they ended up writing down the completely new Constitution of the United States.Hope this helps. Let me know if you need additional help!</span>
