Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
`` virtual space '' is virtual space that is stored on our servers and made available in the form of virtual units . 

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