Generally speaking, a key development that occurred globally during the classical era was "<span>D. The expansion of cultural exchange through regional trade", since this was a time of cultural and technological diffusion. </span>
The Answer would be A, monastery.
Hope this helped! >.<
The conclusion that can be drawn from this chart is Native American groups shared some characteristics and did not share others. The correct answer would be option A. They shared the characteristic which is considering farming as important to all of them.
I think it is C. Both religions had little impact on later societies but I also think it is B. Both religions were the official religions of Rome at one point