The exposition sets the scene by establishing all but which of the following? characters
setting
the turning point
background information

because each is self-sufficient.  

what are the phrases to choose from?

in "people in peace, not profit and war" chrisholm uses inductive reasoning for her argument against defense spending by stating that the new administration, like most americans, wanted to invest in social objectives, so they must not want to prioritize defense spending. mr. nixon said "we can delay no longer in launching new approaches to the problem that beset them", but chrisholm points out that the programs were delayed anyways.