In autobiographical writing, the purpose of the exposition is to
a. provide background to readers understand the narrative
b. provide characterization through the use of dialogue
c. step through the events to build toward the climax
d. tie up loose ends that remain after the climax

the correct answer is b. in order to explain a point clearly in an essay, it is always better to include a clear example of your ideas. including an scenario in which a family is affected by consumerism will support your argument as well as supporting details, such as quotations from experts and statistics. option a could be correct, but statistics and quotations are supporting ideas rather than clear explanations. choices c and d are simply inadequate. they do not add information about the effects of consumerism, rather they are strategies for engaging the reader