The thing that the setting helps show the readers is D. Wyatt and his friends are on a dangerous trip
How to explain
The setting of Wyatt and his friends navigating the Arkansas River, tackling treacherous waters, serves as a powerful visual aid to convey the imminent danger they face.
The description of them engaging in such perilous activities within the river amplifies the notion of a risky journey. The river's wild and turbulent nature mirrors the hazardous expedition undertaken by Wyatt and his companions, highlighting the inherent danger they encounter.
Through this setting, the readers gain a vivid understanding that Wyatt and his friends are embarking on a perilous trip, setting the tone for a narrative fraught with adventure and risk-taking amid the challenging and hazardous environment of the Arkansas River.