Poll taxes, literacy tests(Had nothing to do with reading or writing, also made poor whites not be able to vote), not “having” the ballots for, at the time, Republican Party.
The correct answer is "A: The Great Migration".
The Great Migration was the relocation of more the 6 million African Americans from the rural and urban areas of Southeastern United States (the states of the former Confederacy) to urbanized locations in the northeast, midwest, and west of the country. This dramatically changed the population distribution of African Americans, as 90% of their total population lived in the Southeast prior to this policy but when it ended 50% would live in the designed areas for relocation.
Civil disobedience-- Martin Luther King Jr. used civil disobedience learned from men like Gandhi, Thoreau, and the teachings of Jesus Christ.
The method of civil disobedience uses boycotting, sit-ins, and non-violent protest. Martin Luther King Jr. organized the Montgomery Bus Boycott which was a boycott of the bus system started with Rosa Parks disobedience on segregated buses. It effectively attacked large economic systems which created change due to loss of income.
Divide and Rule Policy
After 1858, the British continued to follow the policy of divide and rule by turning the princes against the people, province against province, caste against caste, group against group, and, above all, Hindus against Muslims.