One primary cultural effect of the sheet music published in Tin Pan Alley was to: "offer job opportunities in the arts to African American musicians."
- This is evident in the fact that the Tim Pan Alley musicians sang songs that promote the mentality of the United States citizens.
- Their songs also assist in reducing the racial and national tensions, especially people of African American descent.
- The stage called the vaudeville at Tim Pan Alley was famous for promoting the struggle of African Americans.
Hence, in this case, the correct answer is option C "offer job opportunities in the arts to African American musicians."
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