I think D, because it talks about prompting more people to migrate.
I think it is the 3rd answer choice.
Answer:
Virus's,
there would be stealing too
Explanation: The silk road was one of the largest roads built for trading across countries and as they traded the virus's were spreading there was also I really bad type of virus's but I forgot the name. I think you should research about it to get more points and i think this is history related not geography. Enjoy.
Answer: Birmingham has evolved from a minuscule 7th century Anglo Saxon hamlet that was located on the edge of the Forest of Arden on the Fringe of early Mercia to a major city in 2020. This has happened by a combination of immigration, civic pride, and innovation. In total, Birmingham has seen 1400 years of growth.
Hope this helps! :)
Explanation: