Which song sold so many copies that the term Platinum Record had to be created instead of Gold?

A. “Hey Jude,” by The Beatles
B. “In-A-Gadda-Da-Vida,” by Iron Butterfly
C. “Satisfaction,” by The Rolling Stones
D. “Johnny B. Goode,” by Chuck Berry

The answer to yesterday's question is B. Alice Cooper was in Cross Country in high school.