Parts of a sentence are given below in jumbled order. Arrange the parts in the correct order to form a meaningful sentence.
Through the dense forest, / the hikers / trekked / for hours / before reaching / the mountain peak.
1
Through the dense forest for hours trekked the hikers before reaching the mountain peak.
2
The hikers trekked for hours through the dense forest before reaching the mountain peak.
3
Before reaching the mountain peak, the hikers through the dense forest trekked for hours.
4
The hikers for hours through the dense forest trekked before reaching the mountain peak.