PLS HELP What is the definition of State’s rights as it relates to the Civil War?

A. The spreading of slavery across the United States.
B. The belief the United States had the God-given right to expand from the Atlantic Ocean to the Pacific Ocean.
C. The belief that federal rights are more important than State’s rights.
D. The belief that State’s rights are more important than federal rights.

american troops were forced to withdraw following deadly bombings.

explanation:

i believe it would influence their own way of understanding things. it shall be a foundation where they can draw or start an argument.   historians are also  scientists that  have their tools of analysis and expertise to unlock a variety of difficulties such as relationships of man, origin, politics, economy, and culture. based on facts and understanding on these areas, they may shade light to extract ideas and develop options to validate a hypothesis or debunk it.