Answer:
I would say A. not 100% sure but seems the most logical.
Mainly, the gold rush and warmer climate to farm. This drove people to settle in the west and south.
Most people are not aware of human rights because they stereotype
Either of the two sexes (male and female), especially when considered with reference to social and cultural differences rather than biological ones.
Stereotypical role may be
Female-house wife, teacher, nurse
Male- Army, police, doctor
Partly due to the failure of Reconstruction to provide racial equality, African Americans would be free but oppressed , second-class citizens well into the 20th century. Reconstruction after the Civil War was a failure.