Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
15.2 you expressly acknowledge and agree that your access to and use of the services is at your sole risk . 

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