Context: He 'd made himself a makeshift sling out of some old linens from his parent 's closet . He left his house , not bothering to shut the door , and began to walk north towards the hills that bordered the city . He 'd stay there until the planet devoured itself . He 'd stay there until there was nothing left .

Question: What 's a possible reason he left his house ?
Options:
0. None of the above choices .
1. Because he did n't want to live there anymore .
2. Because he did n't bother to shut the door .
3. Because there were old linens in his parents ' closet .
Answer: 1