Final answer:
The sentence written correctly is 'O Duke Ellington, born and raised in Washington, D.C., was a pianist, composer, and bandleader who revolutionized jazz.'
Step-by-step explanation:
The correct sentence is: O Duke Ellington, born and raised in Washington, D.C., was a pianist, composer, and bandleader who revolutionized jazz. The sentence is written correctly with proper capitalization for proper nouns and music genres. Duke Ellington is the subject of the sentence, as he was the pianist, composer, and bandleader who revolutionized jazz.
Learn more about Correctly written sentence