Which is NOT a reason that Author Carl Engel gives for jazz's popularity?

What form would best be classified as postmodern

What is wrong with they follow citation of a book with two authors

Have you ever contributed to “social media outrage” (using your social media accounts to boost the anger about a contemporary issue by forwarding it, liking it, etc.) without stopping to think who might’ve originated the message or what the originator’s motives might’ve been? provide example.