Answer:
Andreas Vesalius
Explanation:
Andreas Vesalius and William Harvey in the 1500s and 1600s finally exposed flaws in Galen’s understanding of human anatomy and blood circulation. With his doctrine undermined, other unreliable aspects of his work were then gradually identified.
When it comes to Churchill, things get controversial, but three leadership qualities I'd say he had are: honest, decisive, and persistent. :)
A,C,D, are the right answers.
