Answer:
A. the regulation of schools
Explanation:
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Advantages of Westward Expansion include the gold rush, mining opportunities, the cattle industry, being a cowboy, traveling by railroad, more availability of supplies, and being able to own land cheaply and effectively.
Jim Crow laws were black codes targeted by any non-white class. They placed legal limitations on things such as voting, working, and even recreational events were limited to any non-white person.
Supreme court decides if law is constitutional or not