Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
8.1.2 upon receipt of a booking confirmation from airbnb , a legally binding agreement is formed between you and your host , subject to any additional terms and conditions of the host that apply , including in particular the applicable cancellation policy and any rules and restrictions specified in the listing . 

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