Battles of the civil war; crash US History #19 the north then won a bunch of battles in Mississippi at Raymond Jackson Champion Hill and finnal that victory along with victory at port hudson effectively ended the confederate ability to use the river

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.

b. she founded a new dynasty that ruled egypt for generations.

c is the correct answer for this question.