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.
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MAke wepaons for differnet amrimes and so on
Answer:
B the large influence revivals had on Americans
Explanation:
It was nationalism vs sectionalism