Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
in addition , host agrees to pay co-host for all co-host services completed prior to co-host 's termination within 14 days of co-host 's termination via the resolution center . 

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