Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
19.8 modification of aaa rules - attorney 's fees and costs . 

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