Which finding about the streams in the study, if true, would most directly support Litty and Schlunegger$$s conclusion? Choose $1$ answer: Choose $1$ answer: $($Choice A$)$ The streams contain several types of sediment that are not typically found in streams where the sorting effect has been demonstrated. A The streams contain several types of sediment that are not typically found in streams where the sorting effect has been demonstrated. $($Choice B$)$ The streams are fed by multiple tributaries that carry significant volumes of sediment and that enter the streams downstream of the sampling sites. B The streams are fed by multiple tributaries that carry significant volumes of sediment and that enter the streams downstream of the sampling sites. $($Choice C$)$ The streams mostly originate from the same source, but their lengths vary considerably due to the different courses they take. C The streams mostly originate from the same source, but their lengths vary considerably due to the different courses they take. $($Choice D$)$ The streams regularly experience portions of their banks collapsing into the water at multiple points upstream of the sampling sites. D The streams regularly experience portions of their banks collapsing into the water at multiple points upstream of the sampling sites.