Excerpt from 'The Echoes of Echo Canyon'
Nora stood at the lip of the red-rock amphitheater, watching the shadow of a hawk glide across the sandstone cliffs. Her younger brother, Toby, tugged on her canvas sleeve. 'Are you sure Grandfather's old map is right, Nora? We've been hiking since dawn, and all I see are rocks and scrub oak.' Nora unfolded the faded paper, tracing the ink line drawn fifty years ago. 'Grandfather didn't mark this trail for convenience, Toby. He marked it because the ancient granaries are hidden in the alcoves where flash floods can't reach them. You have to look past the obvious dry riverbed to see where the real shelter lies.' Toby wiped sweat from his forehead, looking up at the towering cliffs with newfound focus. 'So the canyon isn't empty—it's just keeping secrets.' Nora smiled, taking a step onto the narrow ridge. 'Exactly. And we just need to learn how to read its clues.'
Which statement best expresses a central theme of the passage?
- APatience and careful observation reveal hidden value that is not immediately visible.
- BHiking in desert environments requires expensive modern equipment and preparation.
- CYounger siblings should always follow instructions without asking questions.
- DHistorical maps are generally unreliable due to natural landscape changes.