In the Absence of Rodent Herbivores,the Per Capita Population Growth

Multiple Choice

In the absence of rodent herbivores,the per capita population growth rate of a plant in a certain area is 0.06 per year.After the arrival of a population of 500 rodents,the per capita growth rate is -0.02.Assuming that the effect of the rodents on the plants is linear,what is the maximum number of rodents that could be in the area and still allow the plants to have a positive population growth rate?

A) 0
B) 124
C) 374
D) 499
E) 724