At the Gaussland Olympics there are 480 student participants. Each student is participating in 4 different events. Each event has 20 students participating and is supervised by 1 adult coach. There are 16 adult coaches and each coach supervises the same number of events. How many events does each coach supervise?
Answer Choices
A. 12
B. 8
C. 6
D. 16
E. 15