Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
third-party shopping services are offered by third parties at the sole responsibility of third parties . 

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