The best option as to what shift has occurred as a result of the collapse of the Soviet Union is "a shift from government-owned to privately-owned business," although it should be noted that this is a bit of a simplification.
Historians often rely on both primary and secondary sources when supporting an argument, since it's important to use secondary sources to put the argument in context, and primary sources in order to make an original point.
The answer is D I got a 100% on the unit review
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