GAUSS8 2005 Problem 14

Which of these values is the largest?

Answer Choices
A. \displaystyle\frac{4}{2-\frac14}
B. \displaystyle\frac{4}{2+\frac14}
C. \displaystyle\frac{4}{2-\frac13}
D. \displaystyle\frac{4}{2+\frac13}
E. \displaystyle\frac{4}{2-\frac12}