Some evidence exists that ancient Greek and Roman artists used chiaroscuro effects, but in European painting the technique's originator was Leonardo da vinci in the late 15th century in such paintings as his Adoration of the Magi (1481).
Explanation:
C.Slavers held information from the enslaved
Answer: B. it enabled u.s.-based corporations to outsource jobs to other countries, driving up domestic unemployment.
Explanation:
C. First Continental Congress