Question ID:PT91 S2 Q19 Passage:For there to be a thriving population of turtles in a pond, conditions at that pond must be beneficial to turtles. The water in Wallakim Pond, unlike that in Sosachi Pond, is acidic. Thus, there must not be a thriving population of turtles at Wallakim Pond. Stem:Which one of the following, if assumed, enables the argument's conclusion to be properly drawn? Correct Answer Choice:EChoice A:If the water in a pond is not acidic, the conditions at that pond are beneficial to turtles. Choice B:The most important factor that determines whether a pond will have a thriving turtle population is the acidity of the water. Choice C:The water conditions at Sosachi Pond are more beneficial to turtles than are the water conditions at Wallakim Pond. Choice D:Wallakim Pond would have a thriving population of turtles if it were not acidic. Choice E:The conditions at a pond are beneficial to turtles only if the water in the pond is not acidic.