11. One main idea of the passage is that the Grateful Dead:
Your Answer is
Correct Answer is A
Explanation
The subject of this article is the Grateful Dead's commercial success and discusses how their business model was innovative and economically resilient (lines 81-83).
Item B: The band's success is not due to the Internet
Item C: Too specific, the music's success is only mentioned in the first paragraph
Item D: None Imitate the model of Japanese companies