I believe the answer to this question would be B
Europeans gained advanced technology.
Sorry if I’m wrong and if I am, just know that the answer to the question isn’t A or D.
Hope this helps :)))
Answer:
Please click above answer.
Freedmen.
After the Civil War, freed slaves did not receive equal citizenship. This was due to the fact that racism was still rampant within the United States. Essentially, freed slaves became very lowpaid workers on plantations.