I don't know much about this, but I know it is definitely not A (he is not white). I also disagree with C, and I don't D is correct, so I would say that Louis Armstrong is considered jazz legend for his ability to play the trumpet and subtle sense of improvisation.
Answer: B. for his ability to play the trumpet and subtle sence of improvisation
Louis Armstrong is a jazz legend primarily due to his extraordinary trumpet skills and innovative improvisational style. His work in the 1920s, particularly with the 'Hot Fives' and 'Hot Sevens', established jazz as a solo art form. His influence on both instrumental and vocal jazz techniques, including scat singing, further solidifies his legendary status.
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