Which of these advancements is considered by some to be controversial?
A. genetic engineering
B. magnetic resonance imaging
C. organ transplant

what are local authorities doing to fix the problem

explanation:

what are local authorities doing to fix the problem

then its a law the end

the exodus of these people from constantinople contributed to the revival of greek and roman studies, which led to the development of the renaissance in humanism and science. byzantine emigrants also brought to western europe the better preserved and accumulated knowledge of their own greek civilization