Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
however , the duration of statutorily required warranties , if any , shall be limited to the maximum extent permitted by law . 

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