B. two sources written by the same author are used
Answer:
Explanation:
Comment
He had to toe the mark. Alice was really not unreasonable. She was just tidy and she didn't want to clean when she could prevent him from coming in with muddy shoes leaving dirt and grime all over the place, which she would later have to clean up.
I think she's thought out what she wants. He is trying to cooperate with her. Seems they have a pretty good relationship.
