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 . 

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