In the U.S., when did the sale of CDs peak at 13.2 billion?
A. 2000
B. 1997
C. 1993
D. 1989
Question 2
After 2000, how did most musicians make money?
A. Through the sale of CDs
B. Through the sale of vinyl albums
C. Through the sale of merchandise
D. Through the sale of memorabilia on eBay