<span>Common history, customs, and values. They agree to follow a set of rules and accept the governments authority.
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Answer:
I would say A due to what I wrote below but im not to sure so please check but im sure its A
The conflicts that arose between pro-slavery and anti-slavery settlers in the aftermath of the act's passage led to the period of violence known as Bleeding Kansas, and helped paved the way for the American Civil War (1861-65).
Explanation:
I think it’s the last one
D) improved the standard of living for many families.