Instructions Full Game: These are multiple-choice quizzes with four possible answer choices that include all questions in a given set.     
Identify the following philosopher:

(1820-1895) German philosopher and communist. Developed Marxist theory, wrote "The Condition of the Working Class in England" (1845), and co-authored "The Communist Manifesto" (1848).
Friedrich Engels
Ambrose
Marcus Aurelius
RenΓ© Descartes