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