The state income tax where Kristin lives is levied at the rate of p \% of the first \$ 28000 of annual income plus (p+2) \% of any amount above \$ 28000. Kristin noticed that the state income tax she paid amounted to (p+0.25) \% of her annual income. What was her annual income?
Answer Choices
A. \$ 28000
B. \$ 32000
C. \$ 35000
D. \$ 42000
E. \$ 56000