will industrialization and nationalism make it harder for europe to maintain a balance of power between countries

i think the answer is c, rivers.

explanation:

sometimes, borders fall along natural boundaries like rivers or mountain ranges. for example, the boundary between france and spain follows the crest of the pyrenees mountains. for part of its length, the boundary between the united states and mexico follows a river called the rio grande. the borders of four countries divide africa’s lake chad: niger, chad, cameroon, and nigeria.

the answer is selfishly. hope this !

what are the choices btw if it was me id say the lack of money to continue with education

the northwest ordinance of 1787 guaranteed basic rights for settlers and banned slavery there.