PLZ HELP !! Which of the following factors most supports the idea that regional economic differences were a major cause of the civil war?

The constitution protects the rights of citizens by limiting the power of government

What are the expressed and implied powers of the president

The massacre at sand creek was an attack by a colorado militia on peaceful american indians. a colorado militia on a group of dakota warriors. american indians on peaceful white settlers. federal soldiers on a group of cheyenne warriors.