Ten laws and teaching said to have been given to Moses by god

It was the 10 Commandments.

Long ago, God gives Moses the Arc of Covenant it's a golden chest with two flat rocks inside where the 10 Commandments are written but suddenly it become gone forever but there aee list survived

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.