Final answer:
The sentence that has an error involving a dangling modifier is option D: Wondering whether he'd taken the wrong trail, the hiker pulled out his map and flashlight.
Step-by-step explanation:
The sentence that has an error involving a dangling modifier is option D: Wondering whether he'd taken the wrong trail, the hiker pulled out his map and flashlight.
The problem with this sentence is that the modifier 'Wondering whether he'd taken the wrong trail' does not have a clear subject. It is not clear who is wondering whether he'd taken the wrong trail. To fix this error, the sentence could be rewritten as: 'The hiker pulled out his map and flashlight, wondering whether he'd taken the wrong trail.'