How does martin luther king portray appaling condition of negro community?

King used universal themes to depict the struggles of African Americans before closing with an improvised riff on his dreams of equality.

Explanation:  

The “I Have a Dream” speech, delivered by Martin Luther King, Jr. before a crowd of some 250,000 people at the 1963 March on Washington, remains one of the most famous speeches in history. Weaving in references to the country’s Founding Fathers and the Bible. The eloquent speech was immediately recognized as a highlight of the successful protest, and has endured as one of the signature moments of the civil rights movement.

he simply dramatize the appaling condition in the 2nd and 3rd paragraphs of his speech.

Explanation:

it makes the person recieving the message not feel comfortable with the banana

to show how the cables work.