In the post-reconstruction era most african-americans in the south had little opportunity for economic advancement, and worked mainly as
a) landowners.
b) share-croppers.
c) construction hands.
d) industrial laborers.

Option B.  share-croppers is the answer

Explanation:

Social tensions and schism was seen in between people based on their color, race and ethnicities.  African Americans were taken as share croppers or the tenant farmers.

Jim Crow laws came into existence which prohibited racial discrimination in the public place. Plessey and Ferguson case lead to the amendment of constitution which stated ‘separate but equal doctrine’ which itself inwardly violates the law of equality.

The right to poll or contest in election was not granted and this made the African Americans to migrate to north. Many protests were demonstrated to express their apprehension over ethnic discrimination.

for why it was for independence

answer: in october 1962, an american u-2 spy plane secretly photographed nuclear missile sites being built by the soviet union on the island of cuba. president kennedy did not want the soviet union and cuba to know that he had discovered the missiles. he met in secret with his advisors for several days to discuss the problem.

explanation: