Which of the following is an example of how innovative leonardo da vinci was in his artwork?
a. his use of shading
b. his use of chiaroscuro
c. his invention ideas
d. none of the above

The correct answer for the question that is being presented above is this one: "b. his use of chiaroscuro." Leonardo da Vinci's usage of chiaroscuro is an example of how innovative he was in his artwork. Aside from the drawings he made and the painting of the ceiling of the Sistine Chapel in St. Peter's Basilica in Rome, he also plays around with shadows in his drawings.

Ineed the list of artworks and characteristics.