It is "<span>extension of slavery."
</span>
In general, it was the local and state governments that enforced these laws during this time, since the federal government lacked practically all powers to intervene in the states' affairs.
I believe it is B) Weather experts miscalculated the storm. The Miami hurricane developed pretty quickly going from a tropical storm to a category 4 storm in less than 24 hours.
They were known as a fundamental difference between European.