Read the following excerpt carefully before choosing your answer.
This passage is from the end of then-Senator Barack Obama's November 2007 Speech on the "American Dream."
"The dreams of my grandmother-who was up at dawn and worked twice as hard at her job because a woman had to work harder
to get ahead.
The dreams of my father who crossed an ocean because America offered that light to the world.
The dreams of my mother-a single mom who understood that a life rich in family and experience was more important than a life of
riches.
The dreams of those men and women on the South Side of Chicago, who fought with me to create a future for their community after
the steel plant was shuttered."
The purpose of placing the line, "The dreams of my mother-a single mom who understood that a life rich in family and experience
was more important than a life of riches," at the end of his speech is
to
O offer details and examples and leave his audience with concrete support for his argument
establish emotional distance from the issue and show his reserve when faced with conflict
leave the audience with facts that create a lasting impression of his authority and credibility
offer contrasting and connotative images to inspire the audience to share his vision