Humanities CLEP Prep Practice Exam 2026 - Free Humanities CLEP Practice Questions and Study Guide

Seneca is the only one of the listed options whose philosophical works focused primarily on stoic philosophy. Diogenes was a cynic philosopher and not focused on stoicism as a philosophy. Cicero was an eclectic philosopher who drew on multiple schools of thought, including stoicism, but did not represent the most elaborate formulation of stoic philosophy. Epicurus was a hedonist philosopher and his teachings were very different from those of stoicism. Therefore, Seneca is the most fitting choice for this question.