Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
all rights not expressly granted by vimeo are reserved . 

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