He unique feature of copland's "lincoln portrait" is its a. quotations of civil war melodies. b. spoken text derived from lincoln's speeches and letters. c. use of quotations of lincoln's favorite songs. d. spoken text from the declaration of independence.

B. spoken text derived from Lincoln's speeches and letters

The Lincoln Portrait’s lyrics include quotes from Abraham Lincoln’s speeches and letters. The Lincoln Portrait debuted in 1942 during the start of World War II. It was Copland’s tribute to the former American president, Lincoln. The Lincoln Portrait performance included an orchestra along with a narrator telling a story including quotes by Abraham Lincoln. 

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