Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
15.1 this agreement shall be effective for a 30-day term , at the end of which it will automatically and continuously renew for subsequent 30-day terms until such time when you or airbnb terminate the agreement in accordance with this provision . 

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