<span>Four traditions related with African Americans are combined due to jazz. It means that jazz is the main cause of combination of different traditions of African Americans. These traditions were related with the music industry. As a result different types of music related things were given to the music industry.</span>
Answer:
Blacks are incapable of building civilization
Explanation:
This poster illsutrations the idea of blacks being incapable of acting proper and that they are dumb (They are not).