They are farther away from the path of the sun. The equator is almost always directly in the pathway on the sun, while the poles aren’t.
Economic opportunities seems to be the driving factor for migration nowadays. An example of a group of migrants migrating from areas with a lack of economic opportunities to areas with more economic opportunities are Mexican immigrants seeking job opportunities.
I think that the best answer is: D. Southwest Asia and Northern Africa
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This corresponds to today's Egypt, Israel and Saudi Arabia - the places there the Semitic people live and where they have historically lived. So Semitic religions are most likely found where the Semitic peoples live.