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 '' ) . 

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