Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
neither party agrees to class arbitration , or an arbitration where a person brings a dispute as a representative of any other person or persons . 

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