Peter feels the following is wrong when he first leaves Vola's barn: d)He doesn't like the idea of returning to his grandfather's."
The story, Pax by Sara Pennypacker is about a man named Peter who was caught up in war and the choice of leaving a fox he came to know. The woman Vola had taken him in and helped him to realize his weaknesses and inability to fight the war.
When he decided to go home to his grandfather's place from Vola's barn, he felt a huge sense of sadness and disconnection. He worried about leaving Vola but he also knew that he required urgent medical help at his grandfather's place.