Why hadn’t europeans used maritime routes before the age of exploration?

Wrong

They focused on exploring Europe for gold, silver, and other precious metals.

Right: They didn’t have the ships and navigation skills to travel around Africa to Asia.

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.

following type of cultural development caused people to want and buy new products on the market :