Many ideas in the magna carta contributed greatly to the formation of a) centralization of power b) modern democracy c) separation of church and state d) territorial indifference

i believe the answer is a

the second significant cause of the great migration was the desire of black southerners to escape segregation, known euphemistically as jim crow. rural african american southerners believed that segregation - and racism and prejudice against blacks - was significantly less intense in the north.