Read the following context and choose the best option to answer the question.
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 ?
Options: 
- The government gave no explanation for it .
 - He does n't know who in town sent it .
 - He does n't know where it came from .
 - He does n't know in the town government sent it .


The government gave no explanation for it .