The Russian Domain's Unpredictable Politics and Poor Economic Conditions Have

The Russian Domain's unpredictable politics and poor economic conditions have led to this migration pattern.

A) movement into the southern Russia for agricultural opportunity
B) urban-to-rural due to overcrowding in major cities
C) young, well-educated populations leaving Russia for other countries
D) Jewish populations within Russia returning to Russian cities from Israel and the U.S.
E) eastward expansion into Siberia