The theory explaining the Great Atlantic Migration can be best formed by the combination of economic push factors in Europe resulting from crop failures and political push factors in Europe due to governmental instability. Both of these factors contributed to the reasons why individuals and families left Europe for opportunities in the United States. Economic pull factors in the U.S., such as job opportunities and industrial growth, also played a significant role in attracting migrants. Therefore, none of the options provided fully encapsulates the theory on its own, but rather a combination of push and pull factors is necessary for a comprehensive understanding.
If you have to select one from the options provided, the best choice would likely be:
- economic push factors in Europe resulting from crop failures
This reflects the economic desperation that often drove migration.