a good man is hard to find

How does describing the grandmother as “a parched old turkey crying for water” in paragraph 132 contribute to her characterization?

1. It shows how humorously The Misfit views the grandmother.
2. It emphasizes how the grandmother feels guilty about her son's death.
3. It shows that the grandmother regretted how she treated her son.
4. It emphasizes the grandmother’s desperation in the situation.