When Did the Concept of Individualism Find Its Brightest Moment

When did the concept of individualism find its brightest moment and what form did it take?

A) At the Constitutional Convention and in the form of separation of powers
B) At the Magna Carta and in the form of the Barony
C) At the American Revolution and in the form of the idea that freedom has its own order and structure
D) At the English Revolution and in the form of religious tolerance