Question ID:PT91 S2 Q6 Passage:Surprisingly, a new study has revealed that shortly after a heavy rainfall, pollution levels in Crystal Bay reach their highest levels. This occurs despite the fact that rainwater is almost totally pure and one would therefore expect that it would dilute the polluted seawater. Stem:Which one of the following, if true, most helps to explain why pollution levels in Crystal Bay increase after a heavy rainfall? Correct Answer Choice:BChoice A:Compared to the total amount of polluted seawater, the amount of rainwater that falls into Crystal Bay is negligible. Choice B:Most of the rainwater that eventually reaches Crystal Bay falls on pesticide-treated fields before being carried into the bay. Choice C:Most rainwater carried by clouds consists of water that has evaporated from oceans around the world. Choice D:The single leading cause of pollution in Crystal Bay is beachgoers' leaving behind their trash and debris, which then blows into the bay. Choice E:Other nearby ocean areas experience a pattern of pollutant increase and decrease that is extremely similar to that of Crystal Bay.