A University Wants to Increase Its Retention Rate of 4 $\pi$

A university wants to increase its retention rate of 4% for graduating students from the previous year. The null and alternative hypotheses to test if retention rate did increase will be?

A) H₀: $\pi$ $\le$ 0.04; H_a: $\pi$ > 0.04
B) H₀: $\pi$$≥$ 0.04; H_a: $\pi$ < 0.04
C) H₀: $\pi$ = 0.04; H_a: $\pi$ $\neq$ 0.04
D) H₀: $\pi$ > 0.04; H_a: $\pi$ $\le$ 0.04
E) H₀: $\pi$ $\neq$ 0.04; H_a: $\pi$ = 0.04