Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
a security deposit , if required by a host , may be applied to any overstay fees due for a guest 's overstay . 

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