The underlined pronoun can be identified a subject influence on the sentence....
Answer:
1: Traffic was moving at a snail's pace.
Explanation:
An Idiom is like a phrase:
It's raining cats and dogs out there.
"Raining cats and dogs" is the idiom, as with this answer, it's, "moving at a snail's pace"
B. Unabridged - meaning it has not been shortened
