What factor(s) in the us south led to the great migration of almost 6 million african-americans to the mid-west and north during the early to mid 20th century?

a) total freedom and civil rights protection
b) availability of jobs and economic opportunity
c) the harlem renaissance led to more entertainment jobs
d) the civil rights movement in the south forced them to move north

answer; ///i believe that the correct answer is (baldassare castiglione.

i believe the answer is:

-   william jennings bryan is a democrat while mckinley was a republican

at that time, the segment of population that choose for democratic party were the voters with low economic background and vice versa

- william jennings has support of populists and wants to have inflation to farmers while mckinley has support of bankers and businessmen , doesn't want inflation

the fixed value of gold make the large business able to stack up their gold without   being worried that it would devaluated.

- william jennings supported the silver standard while mckinley supported the gold standard

according to jenning, using other metal beside gold could the poor people to have more purchasing power and them advance in the society.