During the 1800s, reformer Dorothea Dix primarily worked to improve conditions in prisons and hospitals.
form labor unions in mills and factories.
preach sermons at revival meetings.
provide everyone with access to education.

A.  improve conditions in prisons and hospitals.

Explanation:

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.

workers should be given a fair share of the wealth their work creates

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