In which sentence does the bolded prepositional phrase modify a noun?

we were trapped beneath the heavy snow.
during the winter, we rode a sleigh to school.
icicles with long points hung from the roof.
after the storm, the streets were piled high with snow.

Which sentence best uses transitions to explain how the evidence supports the reason in the accompanying claim statement? clearly, rainsford did not kill zaroff in self-defense. this statement, therefore, shows that rainsford killed zaroff in self-defense. so, rainsford is not justified because there is no proof he acted in self-defense. in the end, rainsford is not justified in killing zaroff.