Answer:
A. Examples of his many insightful talents
Explanation:
Leonardo da Vinci was very fascinated about anatomical studies and worked on dissection at hospital. In his painting, we can see the use of anatomical study very well. Also, from his sketch, we get to now about the first ever design of a helicopter. That's why option A describes da Vinci the best.
Disease, high population, crime, sanitation
I would say place, I'm not sure
The answer is D. I hope this helps and you have an amazing day! :D