Which sentence supports the idea that it is difficult to describe the wonder of the Grand Canyon? A. Within its depth and length, it expresses within that distance more than any one human mind yet has been able to comprehend or interpret for the world, for famous writers have attempted it and great painters have tried it, but all alike have failed. B. Because of its vastness, its sublimity, and its grandeur, the canyon is unique and stands alone in nature. C. Those who have carefully studied the Grand Canyon, however, do not hesitate for a moment to pronounce it the most sublime of all earthly spectacles. D. The Grand Canyon is one of the few things that a person is utterly unable to imagine until actually coming into direct physical contact with it.