I believe your answer would be A- Farmers and urban dwellers.
Hope this helps. Correct me if I'm wrong.
Answer:
I think central Asia not conform
Answer Continents can change in size while tectonic plates stay the same.
Explanation:
Description The Fermi paradox, named after Italian-American physicist Enrico Fermi, is the apparent contradiction between the lack of evidence for extraterrestrial civilizations and various high estimates for their probability. Michael H. Hart formalized the basic points of the argument in a 1975 paper.
Mining hope my answer helped............
