The correct answer is:
[A] She feels like he is decent and non-threatening.
Mrs. Crater thinks Mr. Shiftlet is harmless and thereĀ“s no reason to be afraid of him. However, the truth is that they both had a secret plan: Mrs.Crater wants to use him to repair her property and marry her daughter, while Mr. Shiftlet wants to use Mrs.Crater to get a place to stay and her car.