Answer:
/ boʊˈyɑr, ˈbɔɪ ər / PHONETIC RESPELLING. High School Level. noun. Russian History. a member of the old nobility of Russia, before Peter the Great made rank dependent on state service.
Although this is slightly subjective, it would be "William Shakespeare" who is considered the greatest playwright in the English language, due mostly to his incredibly fluid and "natural" style.
The Renaissance was a period in time where there was a renewed interest is Ancient Greek and Roman art. So your answer is d.