Answer:
The need for raw materials for the factories and increased food supplies for the growing population in urban centers had led to the growth of export economies around the world that had specialized in commercial extraction of natural resources and the production of food and industrial crops.
I believe the answer is A. Unchecked immigration.
Some of the Roman writers tried to rationalize the story of Atlas holding up the sky by equating Atlas to mountains — specifically, the Atlas Mountains. They accomplish this using Medusa’s head.
The gist of the tale is that Perseus passed near Atlas’ location — at the far west of the known world (i.e. continental Europe and Northern Africa) — after slaying Medusa and asked for lodging and protection for the night. Atlas was rude and demanded Perseus to leave, prompting Perseus to expose the Titan to Medusa’s head and turn him into the mountain range. At no point, at least in any source that I know of, did Atlas explicitly ask to be turned to stone.