Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
hosts can pay co-hosts for one-time services and any other expenses using the resolution center . 

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