Renaissance humanists were characterized by their emphasis on which of the following?

A)The doctrine of Roman Catholic Church

B)Islamic teachings and culture

C)Alchemical and mystical arts

D)Ancient Greek and Roman philosophy

D. Ancient Greek and Roman philosophy

Explanation:

"The great intellectual movement of Renaissance Italy was humanism. The humanists believed that the Greek and Latin classics contained both all the lessons one needed to lead a moral and effective life and the best models for a powerful Latin style."

Something I found on the internet