The answer should be A: to outlaw monopolies.
The yellow turbans, I believe, but i dont really know.
B. Living in ethnic enclaves. This can be compared to modern times.
What did Leonardo observe Verrocchio create for his patrons, The answer is Leonardo would have been exposed to both theoretical training and a vast range of technical skills including drafting, chemistry, metallurgy, metal working, plastic casting, leather working, mechanics and carpentry as well as the artistic skills of drawing, painting, sculpting and modelling.
It will help u