Read this passage from 'The Echoes of Blackwater Canyon':
For three weeks, Caleb had studied the topographical map of Blackwater Canyon, tracing every ridge and stream with his index finger. Yet standing at the canyon rim as dusk settled, the mist rising from the gorge looked vastly wilder than paper lines. His older sister, Maya, adjusted her pack and urged him forward. 'We need to reach the rock shelter before dark,' she warned. Caleb took a deep breath, adjusted his flashlight strap, and stepped onto the descending trail. As his boot gripped the rocky path, his initial hesitation vanished, replaced by steady focus.
Which event marks the turning point that shifts Caleb's attitude in the passage?
- ACaleb studying the topographical map for three weeks at home
- BMaya adjusting her backpack and warning him about the coming dark
- CCaleb taking a step onto the trail and feeling his boot grip the path
- DThe mist rising from the gorge as dusk settles over the canyon