THe final two amendments to the bill of rights are the limits to power for the Federal government and outlines states rights.
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B - Some communities closed their schools rather than to integrate.
While some in the the south did not want to integrate their schools, some communities refused (but not most) and they figured out plans to delay integration, transfer students to different schools and close others.
I believe the answer is B. The price of goods would rise, because of the law of supply and demand.
These are concurrent powers
The Grange movement among farmers was similar to the labor unions because they both opposed and sought an end to coercive practices by the owners of capital. Farmers fought against monopoly in the form of railroad pricing. Labor unions fought against the owners of mills and factories. Cooperation, ownership of mills and factories, and political action through the election of representatives to state and federal office who were sympathetic to their platforms informed the Grange. The principles of cooperation, ownership of the means and modes of production, and political action informed both movements.