Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
19.1 oculus is based in the united states and our services are subject to us law . 

```
. OPTIONS: ['Jurisdiction' 'Unilateral termination' 'Arbitration' 'Content removal'
 'Limitation of liability' 'Choice of law' 'Unilateral change' 'None'
 'Contract by using'].