In the 1980s, the African Americans, Puerto Ricans, and Latinos

In the 1980s, the African Americans, Puerto Ricans, and Latinos who had moved to northern cities after World War II were hurt by:

A) the change in the political allegiance of the South.
B) the departure of large manufacturers from the North.
C) Reagan's enforcement of Christian principles in the North.
D) increasing drug problems and violence in the area.
E) strict restrictions imposed on immigrants in these cities.