- The hikers courageously reached the summit in the mountains.
- The mountains reached the hikers courageously the summit.
- Courageously reached the hikers the summit in the mountains.
- The hikers reached in the mountains courageously the summit.
The correct sentence structure in English is Place-Subject-Adverb-Verb-Object. The place (in the mountains) should come first, followed by the subject (the hikers), the adverb (courageously), the verb (reached), and finally, the object (the summit). The correct option (a) follows this structure.
