Montesquieu is best remembered for...

arguing that government should have separation of powers as well as checks and balances.
Life, liberty, and property
believing society was corrupted by greed
the Social Contract Theory

arguing that government should have separation of powers as well as checks and balances.

Montesquieu is best remembered for arguing that government should have separation of powers as well as checks and balances. This idea was expressed in his influential work "The Spirit of the Laws," where he proposed that power should be divided into three branches - legislative, executive, and judicial - to prevent any one branch from becoming too powerful and potentially tyrannical. He believed that this system of separation of powers would help protect individual liberties and ensure a system of government that was fair and just. Additionally, Montesquieu is known for his belief that society was corrupted by greed, and he emphasized the importance of virtue and moral values in maintaining a stable and harmonious society. However, the concept of the social contract theory was primarily associated with the philosopher Jean-Jacques Rousseau.

Montesquieu is best remembered for arguing that government should have separation of powers as well as checks and balances. He believed that dividing political power into different branches, such as the executive, legislative, and judicial branches, was essential in order to prevent any one branch from becoming too powerful and to protect the rights and liberties of the citizens. This concept is known as the principle of separation of powers.

To find the answer to this question, you can start by researching Montesquieu's significant contributions to political theory. Look for his works and writings, particularly his most famous work, "The Spirit of the Laws." In this book, Montesquieu extensively elaborated on his ideas about separation of powers and described how this system should operate to ensure a balanced government.

Once you have gathered information about Montesquieu's ideas, you can compare them to the options provided in the question. In doing so, you will find that his most notable contribution aligns with the statement that he argued for separation of powers and checks and balances in government.