In the first paragraph the author's main argument is that the Ottoman, Safavid, and Mughal empires A) engaged in maritime exploration and expansion before Europeans did.

B)developed new political doctrines that challenged the key beliefs of Islam.

C) were the first Muslim states to abandon traditional weapons in favor of
firearms.

D)were some of the most dominant and important states in the Early Modern
Period.

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.

a king decides to declare war on a neighboring country without the input of any advisers

majority rule is most important in a representative democracy.