Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
you will cooperate as fully as required by us in the defense or settlement of any claim . 

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