Why was the Equal Rights Amendment Defeated?

This simple sentence comprised Section 1 of the Equal Rights Amendment (ERA), which was first proposed in Congress by the National Women's Party in 1923. ... Her "Stop ERA" campaign hinged on the assumption that the time would eliminate laws designed to shield women and led to the eventual defeat of the amendment.

c. the dred scott v. sandford case,

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.