The state income tax where Kristin lives is levied at the rate of p% of the first $28000 of annual income plus (p \plus{} 2) \% of any amount above $28000. Kristin noticed that the state income tax she paid amounted to (p \plus{} 0.25) \% of her annual income. What was her annual income?
<spanclass=′latex−bold′>(A)</span>$28000<spanclass=′latex−bold′>(B)</span>$32000<spanclass=′latex−bold′>(C)</span>$35000<spanclass=′latex−bold′>(D)</span>$42000<spanclass=′latex−bold′>(E)</span>$56000