Which of the three reasons for imperialism was the most important and why

Explanation:Five Motives for Imperialism. Various motives prompt empires to seek to expand their rule over other countries or territories. These include economic, exploratory, ethnocentric, political, and religious motives. ... Imperial powers often competed with each over for the best potential resources, markets, and trade.

montesquieu took the view that the roman republic had powers separated so that no one could usurp complete power. in the british constitutional system, montesquieu discerned a separation of powers among the monarch, parliament, and the courts of law.