Which political theory has been interpreted to mean that a president can shield critical information from congress as a result of the separation of powers?

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 idealization of the rural landscape ; admiration for the beauty of nature ; focus on an individual's inner concerns