Context: It 's been a pretty good week . I got a lot done in town and around home . I got my " free " money from the state in the mail and I still have no idea who owed that to me .
Question Why is the narrator surprised by the money they have ?
Possible answers:
Available choices:
[1]. The government gave no explanation for it .
[2]. He does n't know who in town sent it .
[3]. He does n't know where it came from .
[4]. He does n't know in the town government sent it .
The answer:
[1].