Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
essential contractual obligations are such duties of airbnb in whose proper fulfilment you regularly trust and must trust for the proper execution of the contract but the amount shall be limited to the typically occurring foreseeable damage . 

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