Answer:
to foreshadow the family's encounter with The Misfit
Step-by-step explanation:
O'Connor chooses to have the family stop at the filling station and meet Red Sammy D. to foreshadow the family's encounter with The Misfit . This event is taken from a short story titled "A Good Man is Hard to Find" written by Flannery O'Connor in 1953. This short story focus on each of the character's behavior through the story