Your supervisor makes you remove all of the artificial nesting sites because they are preventing people from rafting on the river. So you decide to save the population of pike minnows by destroying trout nesting sites instead. Assume that 500 natural nesting sites exist for pike minnow and 500 exist for trout.

At what number of trout sites will the pike minnow population start to grow? Assume the competitive effect of trout on pike minnows equals 1.25, the competitive effect of pike minnows on trout equals 0, the per capita growth rate of pike minnows equals 0.25, and the per capita growth rate of trout equals 0.5.

A. 450B. 400C. 350D. 300E. 250