AMC 10A 2014 Problem 6

Suppose that a cows give b gallons of milk in c days. At this rate, how many gallons of milk will d cows give in e days?

Answer Choices
A. \dfrac{b d e}{a c}
B. \dfrac{a c}{b d e}
C. \dfrac{a b d e}{c}
D. \dfrac{b c d e}{a}
E. \dfrac{a b c}{d e}