Which of the following events was a result of ida tarbell's book the history of the standard oil company

The 14th amendment overruled the supreme court case of dred scott vs. sandford. the landmark supreme court case determined which of the following points? a. slaves could not be citizens b. non-landowners could not be citizens c. blacks could not be citizens d. all persons born or naturalized in the united states vary differently in citizen status.

Which is an effective question for launching history inquiry related to the cold war

Answer the questions in the image for brainliest