Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
7.2.2 if you choose to require a security deposit for your accommodation , you must specify this in your listing ( `` security deposit '' ) . 

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