Why was the election of 1856 important

Frémont decried the expansion of slavery, while Buchanan warned that the Republicans were extremists whose victory would lead to civil war. ... Buchanan won a plurality of the popular vote and a majority of the electoral vote, taking all but one slave state and five free states.

Instance of recurring event: United States presidential Election

Date: Tuesday, November 4, 1856

The presidential election of 1856 was also the last time to date that a Democrat was elected to succeed a fellow Democrat as president, and the last one in which a former president ran for election to the presidency on a third party ticket until 1912, when Theodore Roosevelt ran on the Progressive Party ticket

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the correct answer is “opportunity cost”. opportunity cost is what a company misses out because it decided in one option over another one. in this case, the company decided to invest in building a factory so it gave up another possible benefit or profit in order to achieve success with the factory.  

trade-off is not the correct answer since it is a situation in which you accept losing something in return for benefits in other areas.

and finally, consequence is a general term used to accept what it comes when you make a decision. it can be a positive or negative consequence depending if the decision you took was the correct one.