After the french and indian war, tension between colonists and the british government increased because
a. the british increased more taxes
b. british troops refused to leave
c. colonists went ahead with plans for the union
d. the british began to ignore the colonists

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.

your answer is a hope this