All the peoples of the world are in effect partners in this interest

He is trying to tell that the issue of peace is everyone’s concern.  It is their duty to help others if they expect the same kind of help in the future.  He was urging the American people that the time for isolation is at an end and they must make a choice for it is only a matter of time before this war will come at their doorsteps.

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.  

answer is 1935

because gandhi led a march the sea in 1930 and 5 years later he did it again