Question ID:PT10 S4 Q18 Passage:Advertisement: Attention pond owners! Ninety-eight percent of mosquito larvae in a pond die within minutes after the pond has been treated with BTI. Yet BTI is not toxic to fish, birds, animals, plants, or beneficial insects. So by using BTI regularly to destroy their larvae, you can greatly reduce populations of pesky mosquitoes that hatch in your pond, and you can do so without diminishing the populations of fish, frogs, or beneficial insects in and around the pond. Stem:Which one of the following is an assumption on which the argument depends? Correct Answer Choice:EChoice A:The most effective way to control the numbers of mosquitoes in a given area is to destroy the mosquito larvae in that area. Choice B:Populations of mosquitoes are not dependent on a single body of water within an area as a place for their larvae to hatch and develop. Choice C:There are no insect pests besides mosquitoes that pond owners might want to eliminate from in and around their ponds. Choice D:The effectiveness of BTI in destroying mosquito larvae in a pond does not require the pond owner’s strict adherence to specific application procedures. Choice E:The fish, frogs, and beneficial insects in and around a pond-owner’s pond do not depend on mosquito larvae as an important source of food.