What Attribute(s) Distinguished Montaigne's Writing

What attribute(s) distinguished Montaigne's writing?

A) He used humor and self-effacement.
B) He relied on historical and contemporary evidence.
C) He was the first author to employ sarcasm.
D) He refused to cite scripture to prove his theological arguments.
E) He wrote almost completely in a secular vein-that is, no references to a divinity or religion.