Which phrase from the text best supports the answer to part a the progressive era

a. a party in a lower-court case requests that the supreme court overturn the other court’s ruling in the case.

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.

im not sure

step-by-step explanation: s