The answer is A. Ethnic groups
Answer is b, congress was trying to gain control of ohio country.
"The Truman Doctrine was an American foreign policy whose stated purpose was to counter Soviet geopolitical expansion during the Cold War."
The trips of Marco Polo, also known as the book of wanders or the book of the million, is the title with which the travel book of the Venetian merchant Marco Polo, known in Italy as Il Milione (the million), is usually translated into Spanish.
Thee work is divided into four books. The first describes the lands of the Middle East and Central Asia that Marco Polo crossed on his trip to China. The second book talks about China and the court of Kublai Khan. The third describes several coastal regions of the east Japan, India, Sri Lanka and southeast Asia, as well as the east cost of Africa. The fourth book deals with the wars that the mongols held shortly before, and also describes some regions much further north, such as Russia.
It was difficult for Congress to fulfill its duties under the Articles of Confederation because Congress lacked the power to regulate foreign trade, and most congressional decisions required the approval of at least nine states.
