How did realists undermine middle-class morality?

How can you use document e and f to argue that imperialism was more important than alliances and arms build up as the underlying cause of ww1? how could you counter this argument

Which of the following best describes the outcome of the bay of pigs invasion? -it ended in a draw despite strong air support from the united states. -it was a partial success that to resolve the cuban missile crisis. -it was a success and created hostility between cuba and the soviet union. -it was a failure that was an embarrassment for the kennedy administration.

Which of the following was probably the most difficult challenge facing construction of the railroad?