Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
you may be entitled to seek an award of attorney fees and expenses if you prevail in arbitration , to the extent provided under applicable law and the aaa rules . 

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