Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
in addition , both host and co-host are jointly responsible and severally liable for third party claims , including guest claims , arising from the acts and omissions of the other person as related to hosting activities , communications with guests , and the provision of any co-host services . 

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