Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
arbitration fees : the aaa rules will govern payment of all arbitration fees . 

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