Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
third-party services are offered and distributed by third parties at the sole responsibility of third parties . 

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