AMC 10 2000 Problem 8

AT Olympic High School, 2 / 5 of the freshmen and 4 / 5 of the sophomores took the \mathbf{A M C} \rightarrow \mathbf{1 0}. Given that the number of freshmen and sophomore contestants was the same, which of the following must be true?

Answer Choices
A. There are five times as many sophomores as freshmen.
B. There are twice as many sophomores as freshmen.
C. There are as many freshmen as sophomores.
D. There are twice as many freshmen as sophomores.
E. There are five times as many freshmen as sophomores.