Each dance class is 3/4 hour. It takes a student 7 1/2 hours to learn a dance routine. Which statement is true?
A) A student needs to take 10 dance classes to learn the routine.
B) A student needs to take 6 dance classes to learn the routine.
C) A student needs to take 5 dance classes to learn the routine.
D) A student needs to take 9 dance classes to learn the routine.