The detail that best supports the Great Turtle's unique powers is (D) The Great Turtle supported the growing Earth and surrounding waters on his back, indicating a supernatural capability beyond that of other animals.
The detail from the story that BEST supports the idea that the Great Turtle has powers that the other animals lacked is (D) The Great Turtle supported the growing Earth and surrounding waters on his back. This detail demonstrates a unique and significant power that is not attributed to any other animal in the story, illustrating the Great Turtle's paramount role and supernatural ability that allowed Earth itself to think and prosper on his back.
In many Indigenous groups of the Eastern Woodlands, the Great Turtle holds a special status in the creation myth. By carrying the Earth and waters, the Great Turtle not only presents a physical strength but also plays a crucial part in the very existence of the world, a power far beyond what is exhibited by other animals in any version of the origin stories.
Comparatively, calling a council (A), giving instructions (B), or interpreting the falling girl as a sign of good fortune (C) do not singularly demonstrate a power beyond the capabilities of the other animals in the same way as supporting the Earth does.