The Wilmot Proviso pulled the nation apart because the southerners and northerners did not know whether to allow slavery in Mexico and the Wilmot Proviso automatically banned slavery in that region. ... Another was to allow the New Mexico and Utah territories to allow whether they wanted to have slavery.
Answer:
A Pool
Explanation:
Given that a POOL is a form of business strategy where competing business firms come together to form an agreement or union that is based on maximizing profits by reducing competition through controlling prices.
Hence, in this case, where two competing railroad companies agreed to fix shipping rates at a level that benefited both. This kind of voluntary arrangement is called "A POOL."
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