Respuesta :
The correct answer is B) These were pull factors. From 1916 to 1970, a cultural phenomenon called The Great Migration took place in the United State. This migration was the relocation of half a dozen million African Americans from the agricultural South to the cities of the North.
In 1905, Robert Sengstacke Abbott made the primary issue of the Chicago Defender and whatit started as merely a four-page circular grew on to become the most known and vital black metropolitan newspaper in America.