In ancient greece, the philosopher aristotle
invented a method of argument that used logic.
created a style of teaching that involved questions.
explained his version of the ideal form of government.
recorded events of his era and shaped how history is told.

The correct answer is A. invented a method of argument that used logic.

Aristotle is widely renown as the father of logic since his works are the first systematic investigation of the principles of valid reasoning. For Aristotle, logic was a necessary tool to enter in the world of philosophy and science, and his method exerted a strong influence for almost two millennia.

His method was based on three axioms or fundamental propositions:

-Principle of identity: every entity is identical to itself.

-Principle of non-contradiction: a proposition and its contradiction cannot be true at the same time and with the same sense.

-Principle of the excluded third: a proposition is true or its negation is true.

Nowadays, Aristotelian logic has historical relevance and it is important for legal and philosophical arguments, but many scholars consider that it was overcome by the mathematical logic developed in the last centuries.

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)

it created free trade throughout the colonial territories.