C- There were increased job opportunities in Northern cities which led to being the major cause of the migration of many African Americans to the North.
After World War I, There are various economic reforms that had happened and due to destruction taking place there was a need of economic transformation in the country.
- After World war I, there was a lot of hap-hazard in the countries globally. During the world war it was concluded that the nations had to focus on rebuilding themselves.
- Owing to this, there were increased job opportunities in the America in various fields like defense, technologies, healthcare, education and transport industries.
- America's less population meant that there was a scope of job opportunities for outsiders in huge numbers and due to poor conditions in Africa, people decided to migrate to America in search of jobs.
Hence, migration was seen from African countries to seek better paying job opportunities. So the correct option is C.
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