Which revision fixes the dangling modifier in this sentence?
while walking to school almost a mile in the wet, heavy snow, the weather was miserable.

1) while walking to school almost a mile in the heavy, wet snow, the weather was miserable.
2) while i was walking almost a mile to school, the weather was miserable, with wet, heavy snow.
3) the weather was miserable while walking to school almost a mile in the wet, heavy snow.
4) almost a mile in the wet, heavy snow, while i was walking to school, the weather was miserable.